The MK22 request is probably exclusively for MARSOC or possibly (highly doubt lol) Force companies. And there is no issue using a 300wm in "the next conflict"(whatever that means) at 300 yards or less. We have been using win mag in urban Syria and Iraq for years. Unless you are trying to fit that shit broken down in a school backpack, there is no need for a dedicated bolt action 308 platform anymore, and actual SOF (not recon) would be the only users of that in it's very limited capacity.
I have heard first hand criticisms of the ASR that the design allows a lot of dust and debris into the system, but that is something to be ironed out with use. Only time will tell if the ASR goes the way of the PSR or is a success.
All that being said, Task and Purpose is nonsense news most of the time anyways.