It is. There are many people on here who think of having any LLM generated, never-human-reviewed code in the codebase, as vibecoding. There are also people like you, who believe it's about completely ignoring it, and even human-reviewing 10% of the code means it's not vibecoding. The median definition, at least on here, is somewhere in the middle, around "a large portion of the code is never looked at by a human".