A CM recklessly tracking back?
I've heard it all now!
If you're fine with opposition players picking the ball up ten yards from the edge of the box unopposed, being allowed to turn in space with zero pressure then that's cool, but we saw what happened when they do a few minutes after that situation!
I think of you sincerely believe that a player picking the ball up unopposed in that situation is fine, and not expecting CMs to 'recklessly' track back to create a defensive overload there really isn't anything to discuss, as that's basics of football in my opinion.