I don't agree with the Tobi sentiment, he allowed for f2p and semi f2p players to compete because he is a great character (and realistic to the anime) then they nerfed both orochimaru characters too so they don't revive without another sound ninja in the field (making it unrealistic to the anime)

I don't have tendo pain and may never have him but if i paid as much as players had to pay for him i wouldn't be happy if he were nerfed (but this is not really my main concern)