They are neither Hilter or Stalin, I know just generally believing they are evil make one feel relevant, but in this case it is just incompetence of management of an still incredibly profitable company has no idea what would happen when they drive away technical staff and contact everything to vendors.
Have you ever tried to work with Broadcom as a vendor? Management incompetence is not the problem. I'm happy to assume that AT&T is correct to call Broadcom's behavior "bullying".
These Broadcom issues impact a lot of companies that aren’t ATT.