I don't think this is just one party. Kalanick has rubbed a lot of people the wrong way. The only reason he has been around for so long is because people have been waiting to use him as the fall guy for all of Uber's misconduct. Apparently that day is now here. His voting rights aren't worth the paper they are printed on unless he can raise more money so my guess is he will be signing those away shortly if he wants to walk away with anything.