There is a response to this tweet where someone says "stop gatekeeping art" which while I understand the gist of what they mean, seems like a weird thing to say to console someone who is concerned they are about to be automated out of a job.
But framing it as a matter of art does sound like gatekeeping. It'd be "that cannot be art, because x" when all they mean to say is "please don't stop paying me for this".