One thing I wanted to point out, been itching at my brain.
He's all like "this feels like Getsuga Tenshou" he swings it a spinning circle comes out hit the creature and just pops. I mean it looked weak as sin, yeah the pig fell over but seriously?
It didn't look like it had any "oomph" it didnt cut through, it didnt blow up ,it just kinda popped out of existence.
As for all the Its a swastika stuff, kanji for Bankai is 卍解, Thats why it looks like that its actually how you write ban.
卍, which is most commonly read as "ban" or "man" is an archaic Buddhist symbol that is also a Japanese kanji that is not widely used. It has a mystic holy and solar meaning that can be derived from various religious scripture penned by Buddhist scholars.