Reflect Grade in Ranked Advancement
Now that there's a letter grade associated with your game performance can it please be reflected in LP gains and losses? No one should be losing 21 LP in a game where they got S rank that they lost because someone disconnected or the tank wouldn't leave top lane. Solo Queue ranked progression needs to consider more individual ratings. It is called "Solo" queue after all. I'm not saying anyone should ever gain LP for losing a game but some of the loss should at least be mitigated by performing well.