About Mimo 2.6 Architecture

I was checking nee Mimo 2.6 architecture on huggingface page and it looks very simple. I dont mean in a bad way but when we compare recent open models, their architecture is very simple. They dont use any Gated DeltaNet, no mHC or similar architecture, no engram. Just ordinary simple architecture and very good RL i guess.

What are you guys thinking about this?