But Cunc dealt with this. 'Verifiable' is an in-principle thing. It is distinct from saying everyone can do homebrew fact-checking on anything mentioned. Verifiability on Wikipedia can't simply be a sceptics' charter: that really would be a problem.
Verifiable means we can actually verify it to be true. Not in principle, but in practise. The whole point of verifiable sources is that we can be sure we don't have things stated on Wikipedia that aren't true - some vague kind of hypothetical verifiability doesn't help that.