TBH the main issue bleach suffers from imo is that Its main villains (Aizen and ywhach) are such absurd levels of broken that they end up writing themselves into a corner and have to be defeated by asspulls. Let's have aizen be more powerful than THE ENTIRE GOTEI 13, but ichigo can solo a more powerful version of him because...we said so? Let's have ywhach be able to kill friggin yamamoto and beat the most powerful form of the main character, and he can see the future, but he dies because he doesn't see an arrow piercing his heart...somehow?
I like the anime as a whole don't get me wrong but there are some big flaws.
Maybe I am misremembering what A: The Almighty did for Yhwach, but the arrow thing in theory makes sense considering the skillset of everyone there was if it was better written.