I disagree - I have family who sent their kids to Mason from out of state for the software engineering program. My niece went to Mason specifically for the Accounting program. And given the number of on-campus beds that they have (almost as many as Tech) I think that image has dissipated.
All I will say is that I talk to and hire recent grads where I can from Mason -- specifically for infosec -- and that stigma still exists. Even more so since I've been living in FedRAMP hell for the last twelve months.