The people who are limited by Finder use Terminal... The people who can't use Terminal don't need more than Finder. Apple is great at hitting sweet-spots that way.
At any given time i have 3-4 iTerm2 windows open to which if someone closed i would freak and slap them silly. But just because i use the terminal does not mean i don't want a competent file browser.
Im not against there dumbed down version, but Finder as it stands simply isnt practical for a developer, and no i don't want to jump into a terminal to do basic tasks that developer would need to do every day.
I find the current version (in mountain lion) to be quite reasonable though.
ducks
The brokenness of the Finder affects users of all stripes. You don't need to be especially technical. It has been reviled for years and years by developers and non-developers alike.