Cursor isnt for vibe coding. I use it. I ask the AI to do something I know how to do but it can do it faster. I check the changes to make sure everything looks good.
But this sums up so well why I think the valuation is so riskily high. You're saying that right now IDE UX is so slow and bad that often there are changes you know how to make but it would literally just be too many keystrokes for you to want to do yourself.
As far as I can tell if people like you just had a way to express code ideas with fewer keystrokes, a lot of Cursor's market would pretty much just dry up.