Pretty much, I embody this concept fairly well. It's funny you mention Seagull, b/c I had a series in Ilios where I played Genji and went like 42-2, decimated their team to seal games with dragonblade, and remarked to my team that I was channeling my inner seagull. I have never, ever played Genji like that before or after. I don't know wtf happened. It's like Seagull possessed my mouse and went ham. It was probably the most fun I've had, but I can't replicate that every game like he can.
Atheletes are the same. They have to practice over and over and over and sometimes they still look like they wouldn't even cut it on a JV highschool squad yet they are pros. The difference is pros are more consistent over many more sample sizes. So I think you are dead on that ranking and the disparity of our experiences is a result of player inconsistency.