Don't draw conclusions on Jhin from Youtube
Remember that youtubers cherry-pick their videos, so he is going to seem crazy OP and win lane every game. In addition, since every game has Jhin vs Jhin, the better Jhin will win. We can't get good info on how he stacks up to other common champions until he comes to live. Not saying he is or isn't overpowered, just don't make decisions hastily.