Free The Delegates has nothing to do with Pence anyway. Trump is the major problem that needs to be sent packing.
Yes, and no: Outside of Cruz and DeMint, Pence is very well liked among TEA Party circles - Probably just as much as the previously mentioned persons - But Pence is no where near the ideologue... weakened perhaps by pragmatism.
This is precisely McCaint/Palin all over again. An absolutely unpalatable nominee trying to wallpaper credentials with a weak, but popular running mate tailor made to woo Conservatives...
BUT, it is a tell - It shows that Trump is more concerned about trying to tap the Conservatives than he is preserving the 'UP! the middle' - Someone has run the numbers and has found out that without Conservatives, there is no win.
And yes, it is directed at Free the Delegates - Don't forget that Cruz was backed four square by the TEA Party - and it is TEA Party activism precisely that put all those rebellious delegates in place. And Pence is (or at least was) well respected by the TEA Party folks.
So I would submit that this is good news - Pence indicates that the Conservatives are the biggest opposition that Trump needs to overcome - Or rather, that he cannot overcome (or he would have gone another way)...