PSA: Don't blindly copy whatever LCS plays
If you don't know the knowledge and mechanic of a champion , DON'T DO IT IN RANKED just because some LCS people played them.
For example if you don't know you need to play passive for first 3 level as fizz, and try to all in a darius lv1, you shouldn't play tank fizz top, or even better just don't play fizz since you have no experience on the champion.
Play whatever the hell you want in normals, don't bring the random crap into other people's ranked games.
/Rant
(Still salty because of the 
jg reinover wanna be and the tank
top Ray wannabe)
I agree with you. Unfortunately, there will probably always be people who see something done in the LCS and have a dream of making big plays and getting to a better rank with the tactic displayed in LCS, however, that dream blinds them to the fact that they have no experience with the champion.