For me, I pay Jetbrains every year because I want a fully local IDE. I absolutely do NOT want any kind of cloud integration because that means my workflow becomes dependent on Jetbrains or whatever third party is powering the integration. At that point, all of the value of Jetbrains is gone, at least for me, and I could use any other editor. VSCode is much easier to use with dev containers based on my experience.
The other thing that's frustrating is the willingness to ship code off to some third party server / service. Again, I'm paying to NOT have that.
Personally, I don't think Jetbrains will hold out much longer and this is a sign of that. If the people making these decisions have enough power (internally) to put a cloud connected AI assistant in my face, I think it's only a matter of time until they become infested with service based monetization schemes that turn their products into the same junk we're seeing from everyone else in the industry.
Jetbrains needs to re-evaluate what their customers are paying for because they seem to be misguided.
I see some people singing the praises of AI which hasn't been my experience. Any time I ask it about a topic where I'd consider myself an expert, it's wildly wrong. It only seems useful when I ask it about topics where I have very little understanding because the responses are confident sounding and well organized.
So my hunch is that people finding it useful are probably below average developers that don't know what they don't know.