You ain't wrong! I've hit rank 55 with Zavala now and up until two weeks ago, I'd had none drop whatsoever. Now I've had 2 drop in 2 weeks, first was Coldheart at the end of the Nokris strike, and this week I had Sturm drop from a yellow bar Knight half way through... yep... the Nokris strike... rng is a bitch 99% of the time. Never had one drop in Crucible either