I don't think it was a mistake.
Imagine if it had been a success - they had to try.
I dislike Generations of course because they killed Kirk (lamely).
I thought INS to be cliche ridden with the kid and his pet thing. I can't remember. I mostly like Data but hate it when he goes OTT and thought him most unfunny.
There wasn't that much wrong with FC or NEM IMO. Maybe NEM had too much Romulan politics for the casual viewer but I was able to pick it up.
I think timing has a lot to do with it. If the movies came out now I think they would be better received.
And look at the Transformer and Avenger movies. They're pretty much rubbish, just with great special effects but are massive hits at the box office. Would anyone say either of these movies changed their lives? All of the Star Trek movies are better than these IMO even the worst ones.