Yes, it definitely the biggest asspull known to man.
I don't care what anyone says from this point on. Kakashi receiving PS was completely asinine, especially considering the fact that Kakashi was one of the main characters in this manga that somewhat acted like a ninja and didn't go off the handle with overpowered explosions, like mediocre techniques (nothing too extravagant) , deceptive and creative battle styles, as opposed to everyone else who started to pull these overpowered techniques from their ass and completely ruin the main theme of "ninja".
Kishimoto completely ruined this character, which further proves my point that he is an incompetent author who lacks consistency. Kishimoto fell off the deep end and I don't think he can redeem himself after this shit that I have seen today.
Another thing that irritated me was the fact that Kakashi just literally just pissed all over the Uchiha pride and development! Madara, Sasuke and Itachi all progressed with their lineage when it comes to their blood line and then Kakashi comes in, in like fcking 2 minutes and summons a PS. Madara and Sasuke needed EMS just to achieve PS. Then suddenly Kakashi, who receives a pair of rotted MS eyes, pulls out PS. Where did the chakra come from? How can he even sustain such a huge entity when he's not blood related? What was all of Sasuke and Madaras work for?