The frame I'm planning on is a lightweight aluminum CX bike, so I agree that it doesn't have to be a heavy fat tire touring bike. The last build I did with fenders and dynamo lights was something like 23 pounds. It was freaking awesome.
I don't see why people are suddenly so apprehensive about thru-axle forks, though. The tech has been around awhile now and it has its benefits. Necessary for commuting? Heck no. But the frame I want has it, so that's what it has.