@bhrarchinerd Bluesky isn't being run by Twitter people. The only relationship Jay Graber had to Twitter was that Twitter gave her a bunch of money to establish bsky and she demanded to be independent of Twitter Inc.
The investment is actually good news. Graber and her team still own and fully control the company, and the investors got very little power from their investment. They have one board seat that does not give them control of anything. The investors are not "major shareholders.”