[pushcx]

This title and premise are incorrect. It's not a bait-and-switch unless the bait was unavailable: https://en.wikipedia.org/wiki/Bait-and-switch Vivado really was available free. There's a lot of potential criticisms one could write of the decision to change that (and basically all of them were made in this and the previous thread), but bait-and-switch is not one of them.