Exactly! No revisions! It never needed to be reinvented to begin with. I call BS on your theory of progression. In what way is dongles or busted keyboards considered progression? If anything it's a step backwards. It's a given fact that the 2016 redesign continues to have polarized opinions. It's a product full of compromises that has rubbed many people the wrong way. The only reason why they redesigned the keyboard was to fit into a thinner frame. It wasn't to improve an otherwise flawless keybord, but rather for aesthetics. In what twisted world is that "Natural Progression"?
I think Abazigal meant something different by "progress" than it sounded (although someone who believed it was an objective form of progress would just call it progress, I imagine)...I believe what he meant was that these changes represented progress towards Apple's design goal which is often forward looking (in this case, likely by 3-7 years). Like when Ivy said he wants a simple slab of glass as an end goal for the iPhone design. In that case, you can see most recently that Apple got rid of the home button and moved to Face ID. In their minds (and in the minds of people that supported those changes), that represents progress. Eventually, they will get rid of the charge port and charge wirelessly and that will be another move towards Ivy's goal (i.e. "progress" in that sense). Now...Apple is not thinking let's make the best laptop based on the successes of the last laptop (for example, the 2015 keyboard was a great success, therefore it's done and we will never touch it, but move on to work on something else...or each component is great, so let's just offer tech upgrades), they have some sort of end goal in mind that is likely several years away that they are building incrementally towards. In this case, some suspect it's a move towards something similar to Ivy's "single slab of glass" that he envisions for the iPhone, but adapted to the laptop form. The Touchbar, in this case, represents "progress," because it's an incremental move towards a different kind of input, that allows the device to ultimately be thinner and sealed (and more versatile in the input it offers users). The butterfly keyboard is an incremental move towards a thinner device with less key travel (conditioning the user to become accustomed to something closer to what they envision their device having in several years...likely no physical keyboard, but some combination of haptic feedback and OLED or another kind of display technology adapted for keyboard use). In relation to Apple's endgame, this is "progress." Port streamlining also likely relates to a thinner device, more simple to manufacture, with arguably more versatility.
Many of these changes DO NOT feel like progress, if you base your criteria on what worked well previously or if you end up not satisfied with what Apple is building towards. 4 Thunderbolt 3 ports, for example, seems like ripping off a bandaid before a wound has healed...meaning that Apple probably should have had a few legacy ports with a mix of Thunderbolt 3 for a year or two before switching all the way. But, they didn't. Some people in this thread argue that in 10 years everything will be USB-C. That may be the case, but in 10 years we will be using a different laptop. NOW, the reality is that most people use a mix of devices, some that require USB-A, SD, whatever...(I should make it clear here that although I think it's an inconvenience, I personally don't care about the ports...I am used to being required to carry around adapters. People in the debate have brought up good solutions imo.)
When Apple gets to their next gen design, that's when it will be clear if these changes were "progress" or if they've evolved the line into something that appeals to a different sort of user. For those of us that the changes are rubbing the wrong way because they cause inconvenience, different functionality, or failure rates that are too high for us to feel comfortable with, it doesn't seem like progress. I suspect in 2020, if they move to their in-house chips for CPUs, we are going to see some big changes in functionality. I think Apple patents like the living hinge and the OLED screen as keyboard are not just pipe dreams, but will matriculate into the line over the next several years along with a tighter integration between iOS and MacOS. While I'm not looking forward to what I envision happening, I am open to the idea that they could produce something really cool that does win me over. NOW...however...I'm leaning towards switching back to PC for a few years in order for something that is closer to what I'm looking for NOW. I can respect those, though, who enjoy being part of Apple's long game.