I’ll bet that any TOS fans who were furious at the time probably did not go on to like the show. If they were looking for that witty love/hate triangle of Spock/Kirk/McCoy they didn’t get it.
But as the name suggests, TNG reached a totally new generation of fans. American culture had changed a LOT between these two shows and anyone attached to the old one was either old themselves or hooked on reruns.
TNG didn’t slap big right away, either. It took time to get good and find its audience. But I’m so glad they succeeded.
I say all this to point out that angry fans weren’t actually wrong. The Trek they knew was never coming back. It became a whole other thing for a whole other group of people.
The difference between this and, say, the Star Wars sequels is that those sequels disappointed fans AND failed to find a new audience that was just as dedicated and even larger.
People like to use this article to show that angry fans are just idiots- always there and usually wrong. But the TNG miracle hasn’t been repeated many times, if ever, by any of these other franchise rehashes that a Hollywood has shoved out to grab for cash.