After originally approving this, I took a second look and I just don't see it making sense for Tampa. So you have two more promising left fielders? You need three outfielders on your future team and after off-season aging I don't see there being three more promising outfielders than Ando.
This trade isn't terrible, but it's just moves to fill out the roster that should only cost a flyer prospect or just going out and signing a holdover FA. Consistently making moves like these is what will continue keeping the Rays in the basement. And for that is why it's a veto here.