Nah, RR has a very good chance of going to the semies, sometimes things don't work out & you lose, even champions lose in their bad days, about MI well even though they beat DD, RR, i still have doubt about them, IMO the best teams IPL should be DD & RR, they don't have big names, they still prove thier worth.
Anyway MI is going on a dream run, let's how long it will last but i doubt the whole IPL now, MI was losing so badly, suddenly they start to beat the top teams, if this had only happen with MI i wouldn't have doubt but that's the same case with DC & RC when we think those guys are out of the tournament they start winning, i guess they do this so they can get crowed untill the semies, i mean very few fan will come to support a team that is already out of semies, anyway these are just my thoughts, i could be wrong so don't take it too seriously.