I don’t think strap locks are sacrilege on moollons, but I’ve found I don’t need them on any bass any more personally. Once I stopped hanging my bass down low below my belt in my teens I’ve never had a strap get even close to popping off so haven’t considered strap locks as needed.
I think part of my straps staying on is that once they’re on, I leave them on. I own one strap per bass. It’s more money, but I never ever ever forget a strap at a gig, nor do I ever have to adjust strap length when switching basses. It’s been worth it for me. YMMV.