While tech enthusiasts are a minority, they often drive the adoption of new products and technologies.
When Stadia was announced, I was one to push back about the silly "they'll just shut it down" stuff by pointing out that there's a big different between a massively invested product like Stadia and an RSS feed reader or a Could Print service. Then they showed me that investment $ wasn't a reassurance either...
I don't think they'll shut down Gemini, in fact I'd be utterly shocked if they did, so I do think it's memey and silly to avoid Gemini because "they might shut it down," but I would certainly not bet my company on it (by building on top of their APIs).
The biggest insult really is these Google products often do have a reasonably large and dedicated following, it just doesn’t seem to be enough to move the needle compared to a monster ad business.
Currently at 293.
I can't think of any apps or services that Apple has launched in the past decade and has since killed, whereas without even trying I can rattle off at least ten such projects by Google.