They are two different skillsets, in my view. There's a reason that K rates are climbing, so clearly swinging and hitting a ball is becoming more difficult. That's partly approach, but also largely on the velocity and movement that pitchers possess. I'm not sure that gets any easier while bunting. It's a completely different motion and setup.
I'm with you that there are probably many that would be able to do it with some practice, but I don't think all of them could. And regardless, I do wish that they would at least try. I'm onboard with that 100%. I just don't think it's as easy as it's made out to be in today's game.