Not all of us have wild expectations…
Some of us just can’t believe how low their own expectations for performance, longevity and reliability seem to be.
I dunno if I really buy that. Companies are profit minded but they are in fact aware that somewhere in between annual reports... ok,

quarterly reports... they have to have a product line reliable enough to hold interest of the customer base that supports the company's continued existence.
Today in the presence of social media a lot of things do get blown way out of proportion. The things that aren't overblown and that do end up in programs to repair deficiencies reported by customers are a reflection of the corporation looking after what went wrong and making good on it, that's all.
No one's perfect, everyone ships computing gear or OS or apps with some flaws because they are so complex, and to make them perfect.. what is that?...
To make it perfect on the drawing board or in prototype is to invite bankruptcy, with half-designed products waiting for someone to tweak an infinitesimal piece of the whole one more time --by two lines of code or a nanosecond's worth of response time.
So they go with a design and they go with a prototype and they go with the code and the rollout and behind all of those are hundreds of perfectionists wailing "just give me two more hours and it will be perfect."
We at the consumer end of things don't want perfect, believe me. We want functional gear we can bitch about, and we want it this century. The people waiting for the next Mac Pro for so long don't even want perfect, although by now they probably figure they are entitled to expect it
That's not how it works. Join a computer manufacturing team and discover it for yourself if you think otherwise. Meanwhile from what I've read, the Mac Pro next off the line will have been worth the wait. Perfect? Of course not. But it will have had enhanced specs due to more feedback from its main user base, so also enhanced designs and meticulous construction. Will it scale up? Who knows. Will there be fixes? Absolutely. Do we trust Apple? Hell no, we'd rather bitch.
Some of us remember when most computers looked like a slide rule. I think part of the problem today is assembly of complex parts with some of the assembly involving making stuff go where it would rather not. Scaling that up to mass production has to end up with some dicey flaws. It's what sometimes causes me to buy another copy of something I've had good luck with even if it's getting a little long in the tooth (e.g., the mid-2012 MBP) while Apple still sells them as factory refurbs eligible for AppleCare. In my experience that means it's at least a couple operating system boosts from being EOL'd, so worth the peace of mind in case I don't like the latest and greatest and want to wait another cycle.
But that backup purchase doesn't keep me from window shopping Apple's later gear and imagining what the next Apple laptop I eventually purchase will look like. Right now I share concerns about keyboards and chips but I expect Apple will persevere and keep on providing us options we could not have imagined would be available to ordinary end users five years down the road from the day some Apple staffer on a lunch break thinks "what if....?"