Oh of course.. the people creating, writing, directing may care.. some may even be fans as you pointed out . However, that isn't what makes it to the screen all the time. I understand your point, but my inference was to the people holding the Fate of Trek in their hands.. Paramount amd CBS.
If they chose a bunch of random writers, directors, and creators who simply want to make a few million dollars, to make a Trek movie in which the entire thing was destroyed, or there was some finite end to the universe of Trek, and then mothball it indefinitely? Nothing could be done. Regardless of writers, directors or creators that may actually be immersed into, and adore the franchise, if Paramountand CBS decided Trek was over - they could do it. If they wanted to end ST4 with some sort of dream sequence and suddenly, someone looking like Roddenberry wakes up - only to start writing "Star Trek" - they could.