Masaki was also bit in the real world which unlike HM and SS, isn’t entirely composed of spirit particles. And Kirge was in Vollstanding, Masaki wasn’t.
Urahara said they weren’t stealing Arrancar Resureccions because hollows are toxic to Quincies. Erm, why go to the trouble of doing that when they can simply dominate their reiatsu and kill them through death by absorption? So, stealing a Resureccion or a Hollowfied Bankai = poison, but straight up taking over a hollow’s reiatsu and incorporating it into your power set = just fine?
Those three Arrancar chicks in HM said they were helpless against homeboy because he could just absorb them. They even told Orihime to get out of there before he absorbed her too.
I say that to say: So wtf is Shinji (or any of the other hollowfied Shinigami) going to do with their masks on when Quincies can just nope their way through it?
Vizard: "Imma put on mah mask!"
Quincy: "Um no how about I just 12 years a slave that shit."
Vizard: “Oh. Hmm. Okay then.”
This is a total ripoff of DBZ, even the part where Goku had to run that entire length of the dragon just to get to the fight AT THE MOST DRAMATIC MOMENT.