I also think your wrong about the battery life, yes the 2016 might have had some battery issues at the start of production but it's been ironed out with updates. I was getting much better battery life on the 2016 than the 2015, by at least a 2 or 3 hours, coupled with the brighter display and better color gamut I took that as an amazing feat. The 2016 display is much better to look at regarding colors and contrast, the smaller bezels add to the nice look.
Let's talk physics.
MBP'15 - 99.5 Wh battery, 47W CPU with highest iGPU, 35W dGPU, good display, no TouchBar draining energy, bought year ago i. e. battery is losing its capacity.
MBP'16 - 76 Wh battery, 45W CPU with just high iGPU, 35W dGPU, same resolution brighter display, has TouchBar draining energy, bought recently i. e. battery is pretty much new (difference in battery drain of memory and SSD is negligible).
25% less battery, negligible difference in CPU battery efficiency by default, worse iGPU battery efficiency thus more often switching to dGPU, TouchBar wants energy. These are all minuses to battery life and they're at least minus 25% (considering battery volume), more like 30-35% (considering more often switching to dGPU and TouchBar).
On the bright side we know for sure they've optimized display battery efficiency. Not without some lies connected to it (read nearby thread where there is an explanation that you can't even achieve advertised max. brightness until you're under direct sunlight or something like that) but ok, display is at least not worse for sure and quite likely quite better. Just to have the same battery life display battery efficiency must have been optimized for like 40-50% i. e. half of its battery drain. Do you believe this can be achieved in one generation? What were they doing before that?
We should also not forget that along with claims about display battery efficiency optimization they've also made it "brighter"... so it should have eaten some optimization result if they're not ********ting us. So even more display optimization is necessary to achieve same battery life.
If you claim MBP'16 lives 2-3 hours more (i. e. something like +35% to MBP'15) we need to find where they got this additional 35% optimization from. Have they optimized display efficiency 3-4 times? Highly doubt, not in one generation. Where could they get this efficiency from? More aggressive CPU standby, more aggressive switch back from dGPU to iGPU (hence initial lags after idling for short time), very aggressive TouchBar standby... Still too little to achieve 35%.
But if we talk in reality, it's likely that display optimization gave them roughly 25% battery efficiency, no more. Aggressive standby of CPU, GPU, TouchBar etc gave 5-10% more. Thus exactly compensated battery volume difference. And this is what can be seen in real life usage - new MBP'16 after recent fixes to macOS lives on battery for quite the same time as new MBP'15 did out of the box.
And that's exactly what I stated in my post you quoted.
I do believe if some of these things don't matter to one person such as smaller, lighter, nicer display, touch ID or the touch bar or an extra hour or 2 than the 2015 is still a worthy purchase.
So yes, mostly it depends on the person, but the last point about battery life is a huge overstatement anyway. All my points from the post you've quoted still stand.
Compared to the 2015
/ for some noticeably better screen, for some barely noticeable change in screen - go to store and see for yourself
/ quite the same speakers IMHO, might be wrong
- different trackpad, your hands will always touch it accidentally while using keyboard
/ technically better but practically indistinguishable SSD
- relatively worse integrated graphic processor, better discrete graphic processor, so more switches, more glitches, degraded performance before switch, more battery consumed after switch and this happens more often
- quite the same battery life achieved by cutting the battery Wh almost 1.5 times and being much more aggressive on battery saving (computer will consider it's idle much faster thus more deeds will start with initial small lag)
+ indeed smaller
+ indeed lighter
+ Touch ID
- Touch Bar disrupts your standard keyboard usage: if you don't find any use to its intended functionality - context dependent buttons - which many don't, it will only worsen your keyboard experience; if you find use to its intended functionality then it's both minus and plus
- more mistyping on new keyboard (if you don't type fast this will likely not affect you)
+ universal Thunderbolt 3/USB-C ports