I wrote in an earlier comment, "Apple released new stuff, quick, write a contrarian blog post!" I'd almost swear an entire industry has built up around this very sentiment.
Seems to me that if Apple suffers from anything, it's the ol' Microsoft conundrum: "our competition is the previous version of Windows". My 2012 rMBP is chugging along just fine, running VMs and IDEs, and just being a general workhorse. Though I imagine I'll go against the grain and find the Touch Bar actually useful, I'm not dropping $2500 to find out. I'm not of the opinion that Apple is losing it, gone off the rails, or whatever the cool kids on Medium are saying. I just don't see enough of a jump to warrant spending more money. Which I imagine is a problem a lot of computer manufacturers are coming to grips with.
And perhaps that's the source of the angst. Many, like me, were probably looking for a reason, any reason to go drop $2500 to replace their 3-4 year old laptop. The big announcement came, and no such reasons were given. Doesn't bother me, it's a tool not a toy. But I can understand some disappointment.