AI carries a set of connotations in popular imagination that a) don't comport with the actual capabilities of what we term 'AI' in the computer science world, and b) are being exploited by marketing teams at IBM and plenty of other companies to sell technologies that aren't particularly new or interesting. The kernel of truth in 'AI is bullshit' is really that the discourse around AI is bullshit, which I think is a pretty fair assessment, and this is coming from someone who's work gets labeled as AI on a regular basis.