In a surprise announcement, Mr Musk said he would pay $54.20 a share for Twitter, valuing it at about $40bn. It recently emerged that Mr Musk was Twitter's biggest shareholder after he built up a large stake in the firm. He said that if his offer was not accepted: "I would need to reconsider my position as a shareholder".
I see a lot of Tyranny in his statement. So, having the most shares gives you the right or puts you in a position to better buy over someone's ideas. He even got to view himself as the only one that could bring twitter to its fullest potential and I wonder what that could be. I think this idea came up given the fact that, he provided some space network for Ukraine to ensure communication in the on going war when the disruption to this happened.
Considering his positionas a share holder is a very ambitious statement but like OP said, it's another attempt to promote either doge or some other shit coin or perhaps, his looking towards creating a coin for twitter itself and establish some affiliation of usage with the Twitter social media.