Lol, PS has been portrayed to be capable of tanking much more than it can dish out. I don't see why I should believe Night Guy distroting space when that would require extreme mass or approximately sub relavistic speed. It was figurative or a hyperbole to add emphasis to the attack. If I were to use statements to back up my statements, I could say PS can destroy all things in this universe, but not itself since PS always tanks more than it does damage. Without hype, well PS still keeps the evidence of tanking more than it can destroy, hence mountain range annihilator=>Night guy (assuming he can hit the diamond structure on Madara's forehead with an equivalent momentum, even though gravity would be going against him if he's executing an upwards night guy).