Blastoise Pokedex entry reads as follows: "The rocket cannons on its shell fire jets of water capable of punching holes through thick steel."
and the entry of Mega Blastoise: "The cannon on its back is as powerful as a tank gun. Its tough legs and back enable it to withstand the recoil from firing the cannon."
I'm pretty sure thats enough force to kill someone instantly.
It's never enough to kill you. A water jet comparable in power to a tank shell hits you in the face, you're maybe gonna faint at worst. A literal God brings down the fury of heavens upon you, and you're just knocked out cold with a bruise that the local ER can heal free of charge.
Except it's saying the opposite? That comic is making fun of the game because no matter how deasly the attack is the pokemon on the receiving end will only faint.
Would do you well to actually look at the name of the commenter sometime to not insult the wrong person, yea? And I'm pretty sure you don't actually understand the comic.