Pacing is the main thing here. Like where S1 ended to where they are so far it is like uh can we slow it down a bit. When an anime only watcher feels like the pacing is going way too fast you know we got a problem.
Its not really the pacing for me tho. The 3 episodes did their thing with the action n story so far. I guess my two biggest gripes are.....
I feel like the whole spirit turtle shyt is similar to a Savage Sword of Conan comic book from the 80's where they plot was damn near the same. Only difference was the giant turtle was actually mechanical and held a whole city inside it who's citizens didn't even know they were inside the shyt. The giant turtle basically traveled and stomped over everything sucking up resources from the outside world. Seeing the anime version of this is just ok to me.
I also think that season one was so endearing because nikkas really fukked with the Shield hero's plight. You wanted to see him win after going through so much fukk shyt. Fast forward to now and he's that guy and no longer has to deal with a lot of the shyt that made you root for him last season.