If Dhoni had not refused those singles, CSK would not have lost that match by 1 run against RCB. If Robin Uthappa didn't waste so many balls in that innings of 9 runs of 20 balls, KKR would not have lost by 10 runs against RCB
Surely you are not saying RCB is not in the playoffs because of that umpire error. I would say RCB clearly got the team selection wrong for lots of matches