That is the modus operandi with products/services, it's not anything new anyways. It has been named in a bunch of different ways ranging from "agile" , "move fast break things" etc. also less charmingly "Microsoft vaporware products" or "Google graveyard", "Steve Jobs' bluffs"
They all indicate the same strategy: ship something and get feedback, if feedback is ultra-negative then you can always kill it.
However when legal stuff is signed, and especially legal stuff of this magnitude then the only way in which you leave yourself room to backtrack is if there is a clause which lets you do so in the legal document. When legal stuff is signed is not in your hands anymore, you have to treat it as being in the courts hands. Because that is what happens if you backtrack.