Maybe so, but I don't care for experimenting just for the sake of experimenting, when it doesn't have any actual value or isn't worth watching (not that that was often the case with Altman).
You, me, or anyone else for that matter can shoot a film that hasn't been done before, doesn't necessarily mean anything.
Both Boogie Nights & Magnolia were absolute masterpieces for me. And considering that we (or I at least) don't see these kinds of films every other week, I do consider them original in some way. Depends of course on how you define original in this case.