Queue Dodging Punishments (Too Harsh?)

First of all, I am not ranting on the system because it had happened to me or a friend, (in fact it never did), but it just came to me as I read about the dodging punishments...

I am fully aware that the point of the dodge ban timer is so that you don't 'troll' and dodge every single game last second. However, let's put you in an average scenario which usually happens in Bronze-Gold ELO, you all get your lanes, but the last member on your team locks in Urgot mid, then he takes summoner spells like Cleanse and Smite. You have no other option but to either dodge or lose the game. Of course dodging would be more worth it because you only lose about 2LP, but what if you were in Promos, Provisionals, or have 0LP? It is unfair to derank all because a troll had, of course, trolled. On top of that, you have a 5 minute ban for dodging and have to waste precious time of your life waiting for that timer to end and re-ranking up only to find out that it happens again!

Again, I completely understand that the point of these punishments are to prevent you from doing it, but in situations like the above, it only makes the game less fun! What I would suggest is that players could have 1 free dodge per day or even week? And the players that dodge for the fun of making your queue a living hell get a greater punishment.

Thank you for taking the time to read this Discussion and hope you all have a great time on the rift! -Blanko