My gut reaction is, if AI was really good at vibe coding all the infra it could be nice, but getting C deployed and productized is the potential challenge. The "roads" we built for hyper scaling apps doesn't strike me as C friendly. And, even with the friendlier deployment strateies on next, python, etc, AI still slips up a lot.
Vibe coding is mostly for solo devs anyway. If you work with a team you need to carefully think out how everything pieces together, how it will be later understood by other devs, what the plan is a few yrs down the road.
AI just gives suggestions but you have to make all the hard choices and fix/simplify a lot of the output