Having watched too many shooters struggle to clear a malfunction I think this lower has merit. The question of whether this solves one issue (easier malfunction clearing) but creates another (less robust lower that results in breakage) will have to be determined.
I like the forward assist button but I would rather extract the round before I create a bigger problem. Don’t forget the concave scoop on the bolt can also be used as a forward assist. Push it forward with your finger. I didn’t say it was a great idea. Just an option