I think some people are forgetting that Juha Bach said, "let's crush him". Meaning it's not just Juha laying the beatdown on Ichigo, it's his right-hand guy too. I think that guy has some sort of "nullifying" or "time slowing" power and that's why Juha laughed off a Getsugu Tenshou and Ichigo ended up grabbing Juha's forearm instead of his face.
Getsuga Tenshou, repetitive as it may be, isn't something you walk through, unless you're Ulquiorra or Aizen that is. I also doubt they could do that now.
Any way, Byakuya is officially dead and Ichigo used Blute Vene; a Quincy technique that he may have picked up from Kirge. He definitely needed it, with Juha having Yama-Ji's Bankai and all that.
I also have a bad feeling that everyone in the Royal Guard may end up being like Ichigo by having powers from many different teachings. Only time will tell.