Han really is Hango 2.0, the length and choreography of these battles is very similar;
Shin is prevented from interfering with the centre battlefield while SBS/Tou launches a direct assault on the enemy.
As they gradually approach they engage the elites from the opposing army, eventually resulting in a quick finale followed by Ousen/RKK's retreat.
There’s barely any room to show things like formations, strategies, etc.
We only get a panel here and there where it’s shown that formation x or whatever is used without really going into it.

It’s not like the story has become bad perse, I still enjoy it.
It’s just that the level of expressiveness, detail, creativity, etc. that was present in earlier battles isn’t as strong anymore.