I see your point but terrible examples there.
That aside, surely the disappointment is from those people who as you've said don't like change, your point is that things develop and improve so we don't have the same old clunker, but that IMO is sort of the same thing those people are saying. Eg 20 years on Toyota and Subaru know the turbo exists, they know about 6 cyl engines etc. so why not "modernise" the 86 and put in something around 300hp or even 350hp and instead of trying to make the AE86 again, make something better.