If Mullenweg attempts to fire the board that just suspended him, he would be weaponizing proxy votes against the very investors who originally granted them. While founder proxies are often structured to be irrevocable, using them to purge the board would almost certainly trigger a massive legal battle, attempts by investors to breach or revoke the proxy agreements, and severe financial instability for the company.
While he technically holds the votes required to disband the board, executing that move would ignite a corporate civil war rather than a clean transition of power.
> While he technically holds the votes required to disband the board
This is very unlikely. True Ventures almost certainly controls at least one seat. (Until Phil Black left last year they actually held two seats, but that doesn't mean they had the right to. Either way, at the moment it's just Toni Schneider.)