While I don’t know exactly who you’re referring to and their views, I think mostly you’re veering towards a rejection of the Theravāda Abhidhamma… which is probably the mainline view of the “Early Buddhists” on this forum 
As I wrote about previously, I read the MMK (and much of the early Prajnaparamita literature) as being a parody of the scholastic excesses of the Abhidhammikas