mind control is more like darkness.
i honestly don't see the problem with temporary mind control cards, infact in concept it should already have been applied in darkness AGES ago, thats just my honest opinion.
My theory to as why people frown upon these cards is simple.
1: it hurts their style of playing the game
2: the concept of taking over someone elses creatures is just simply annoying to them, but inexplicably, even if its just temporary.
to be honest i find that copying one of the opponents creatures with PU and then killing the exact same creature with lightning is not different in anyway to permanent mind control.
and this is NOT permanent mind control, its temporary.