I want to know if the Titanium X power will let to raid 2 nvme drives since they're 2x m.2 slots...?

No it won't, because one is going directly to CPU, while other one via X370 chipset. For raid you need drives on same controller.

I just wonder (maybe im just way too dumb) but why features like bluetooth and wireless adapater does not appear as features for the high end motherboards? I have the crosshair IV extreme (yeah such a vintage setup) and a 965 and the things i love from the mobo is basically the absurd durability and the bluetooth conection.