The problem I see is that the reverse is more likely. Sun is buying Steem and we are losing consensus witnesses as a result.

Corporations transfer liabilities with the assets when they are sold. Those promises pertain to Stinc and the founder's stake, not to Hive account@ned. Sun and Tron are bound by Stinc's representations to investors because they are Stinc, and Stinc was bound by those representations.