As a Trekkie, I'd be more mad about that ending than the series finale of ENT. And if the Xenomorph finale turned out to be a holodeck program, I would probably hate it even more lol.
Not throwing shade. As a standalone story or alternate continuity, Id totally read it. But I would be livid if it was the actual finale to TNG.
Also, Strange New Worlds kind of did that with the Gorn.
Spoiler
RIP Henner :(