Using Tokens is part of the game. that's what they are there for. Whether you choose to buy them (which I dont) or use the ones you are given, also watching videos or downloading apps, this are all legit....Tanking however, is purposely losing to gain an advantage, which I would consider, a form of cheating. I don't want to compare this game to real football, because most of the time it doesn't compare, but a lot of people make the comparison, and so taking that into account, how many managers, in the real world, deliberately lose....?
And as I said before, where's the fun and fulfillment in purposely losing for a season or 2, just so you may win 3 seasons later, in an inferior league....Face it Bubba, it's a form of cheating....!