So, people are shitting bricks because the content creators of LoL decided that the salaried professional players are not allowed to play 27 games while steam(most of which are other MOBA's which compete with it, or products of companies who are competitors). It's just common sense that if you are being paid by a company to play their games, you won't be advertising the competition or rival companies products.... It's not even like that list is that bad.
Banned games:
Seriously, it's not even some huge list with all triple A games made ever. I see no issue for this contract clause of a salaried player.