Unironically saying "You need aim, nothing else." sounds arrogant and condescending, not to mention factually wrong. Improvement is still learning in itself, and learning how to do cross screen jumps still requires even just a slight change in approach and playstyle. For example, if I get stuck with anything, I try to learn more approaches and tips from forums and other places like asking pros, etc. Even just simple insight and "play more" coming from them can get you quite far.
I actually could have shrugged that off but it seems that you were serious, and seriously wrong.
LOL when players keep playing without learning, they eventually get stuck and ask here in the forums. That's what you call trying to learn.