This sounds like the people on IRC years ago who said, who cares if Hall and Nash jump ship to WCW, Vince still has HBK and Bret. Look what happened.
Vince has not JUST lost Angle.
In the recent past he has lost
Christian, Angle, Jericho, Trish and Stacy
JBL almost left. This is part of a trend, all of them did not go to TNA, but wrestlers are starting to search for options again outside of the WWE. Christian did very well by leaving and if Angle is treated right it says a lot to workers. A limited travel schedule, and more respect can mean a lot to people who already have financial independence.
Wasn't Benoit thinking about leaving at one point also?