AFAICT MASD is an iteration on MDE which incorporates parts of MAD but not in a direct fashion.

Lots of acronyms there.

These types of systems do exist, they just aren’t mainstream because there hasn’t been a version of them that could be easily used for general development outside of the specific mid-level niches they are built in.

I think it’s the goal, but I’ve not seen anything come close yet.

Admittedly I’m not an authority so it may just be me missing the important things.