No it isn't. De facto means 'denoting someone or something that is such in fact'. In this case, the fact that jazz musicians are just pretentious oh-aren't-we-so-fucking-great-we-can't-even-acknowledge-there-are-35-people-in-the-audience-watching-intently-as-we-all-wank-away-and-guve-each-other-knowing-shit-eating-grins-after-each-noodly-solo. Don't lie or worm your way out of this: I'v seen and heard it many times with my own ears and eyes. Fact: jazz musicians are wanker-soloists.