It really depends on the end goal. For personal tools that one uses, LLMs are extremely useful. But publicly used software doesn't only need to be written - it also needs to be maintained. And considering that it's extremely easy to implement features that are not used, vibe coded software tends to be, in best case, a mixed bag, and in worst (I believe typical) case, quickly abandoned.

Vibe coded software is the modern equivalent of the shovelware of the 90s.