I mean one of the biggest issues with Bleach as a whole is that it tries to do too much with too little. To quote a famous hobbit, "like butter scraped over too much bread." Kubo created a ton of cool characters, but didn't flesh them out a ton. He created a neat power system that lead to cool fights and dope looking weapons and powers, but didn't make a lot of sense or felt cohesive went you really looked and went, "...hey wait a fucking minute." He created a cool world, but didn't really fill it with anything. Like a bunch of awesome glasses full of whipped cream or tissue paper. I mean, yeah it becomes a "generic" action series, but it falls in that genre. A shit ton of battle shonen do the same shit, just might be constructed better or in a preferred flavor. "Generic" isn't really valid as a criticism when applying the fact that it turned into an action-oriented battle shonen when it was....an action-oriented battle shonen. I mean there's a reason people complain about arc repetition in My Hero Academia. It's because it was always the exact same thing as all the other action-oriented battle shonen they watched, they just thought it was different because it's also a superhero series with good characters and a solid world and cool powers. Which it is, but it's also that other thing.i think soul society, if im remembering the arc names right, works well coming off of the first one. where the first arc builds the relationship between ichigo and rukia, as well as with ichigo's friends, arc two is like the protagonist going into hell to save someone they love. things just keep getting worse and worse, but the protagonist persists (with shonen flair). it does get generic as it breaks down into fight after progressionless fight and "hnng would you like to see my bankai." and it ultimately ends super badly in terms of character arcs and emotional momentum (the aizen twist was still cool!). the wasted relationship between rukia and ichigo is just one part of it (even if they were just to remain friends, they should have gone forward as co-protagonists!). it just never rebuilds that emotional connection, buries itself in the same shit that destroys all of the worst shonen jumps.
Keep in mind, I'm not like some super Bleach fanboy or anything, I'm just someone who never understood the hate Bleach got (except maybe that Thousand Year Blood War shit, but I didn't read it so I can't judge) ever since I watched it. Yeah the pacing sucks, but the characters are solid. There are a lot, honestly far too many, but there are some really strong ones in the mix as well and some good chemistry on top of that in between those. The action is dope, and I'd watch fights from Bleach. Plus the music is fucking fire.
All I'm saying is, it's a fun action series that is what it is, and knows what it is. It has some cool shit, it has some lame shit. I have my issues with it, and will probably not ever watch it again unless someone tight with me is watching it and I'm like "yo is this Bleach? Shit I'll watch it." and then there goes a Sunday.