If that's all they want from it, then they don't need to buy Twitter to gain the ability. Freshface McSongbird could be required to tweet without Disney having

If that's all they want from it, then they don't need to buy Twitter to gain the ability. Freshface McSongbird could be required to tweet without Disney having any ownership stake in the company. They could exploit the 'promoted tweets' more, but you could buy an awful lot of promoted tweets for less than 20bn.