This 'Role-based champ select' and punishments for 'not sticking to your role'

Anyone else feel this is forcing a meta too hardcore? Its true...the most effective thing is usually to have solo mid and top, a jungler and a duo bot, and there could be a lot of trolling if people were not punished for stealing roles, but its also straight up wrong - no other game in the world forces you to play a multiplayer game in a certain way against threat of punishment.

What if theres a duo that wants to duo top or duo mid?

What if your not playing like a support in terms of build (i am shocked that it is punishable) or summoners? What if you choose to take CS and simply don't believe in relying 100% on some other random person to carry you?

DOTA doesn't do this and they are managing. Why are we doing this? Inting, hacking, botting and flaming/toxicity should be punishable, but I really can't think of any other reason punishments should be dealt out in a multiplayer game.