He owns 9% of Twitter, according to the article. Is that sufficient, or does it still fall prey to the "split between ownership and control" that managerial cap

He owns 9% of Twitter, according to the article. Is that sufficient, or does it still fall prey to the "split between ownership and control" that managerial capitalism has, as this article puts it? How much less ownership did Parag Agrawal have? How much did Jack Dorsey have- he didn't leave until a year ago! If the fault of Twitter is a PMC-driven culture, why wasn't having Dorsey, a founder-capitalist himself and also the owner of multiple companies, enough to staunch it?