He's got that right.
It did bring fifteen minutes of exposure on national TV, and some discussion among the chattering class (but not necessarily favorable comment).
This has almost sealed the deal for The Donald in Indiana. I suspect Ted Cruz could not get the endorsement of the Indiana governor, and went for this as a “second best”.
Second best was never that much of an advantage.
She's probably got some cash. Cruz desperately needs cash. He also likes the way she protects him from the "people".