Why is this wierd meta stuff popping up? Soraka top, yuumi mid ect? SO a pro player plays it, so wt?

Why is everyone so clingy to pro player choices. You have to realize they are in challenger in a highly coordinated environment not 2 silver 3 people in a grind. They play janna mid, they play this and that, wierd picks that sound troll, well who cares right? Why don't everyone just play what works and have fun. Its a game anyways.

Why play soraka top when you can play xerath adc if you're good?(please don't do it, its cancerous)

Champions i personally think are not fit in lol: Most of these champions are given too much of something to counter a certain thing(auto attacks, ad ect) or they have range so far that its annoying when you can't gank it. 3 seconds Silence, taunt, counter strike, excessive armor rating, parry cancer.
Jax, Xerath, Ziggs, Vel'koz, Fiora, Rammus, Garen.

The extreme cancer: Jax, Rammus, Garen. If fed: Xerath, Ziggs, Vel, Fiora