"There's a lot of negative talk going on, but you are right that Tron will not control the Steem platform, although they may end up holding a lot of Steem."
The intention is not for Tron to control the Steem platform, but rather to migrate the Steemit forum to the Tron Blockchain.
RE: STEEM is still not Steemit, even if Tron buys Steemit.