There is no doubt that Wikipedia is so biased on some topics that it undermines it on all topics.
But I don't really see how Musk's model here is in any way built of stronger foundations, whether it happens to be more accurate on any particular topic or now.
Ultimatly, with all sources, be it a work from a publisher, university output, the journal Nature, or AI content - depend on trust. And if we don't trust the process and the source, they are useless.