I mean you are correct in that public statements are not worth nothing, but Adobe customers would be incredibly naive if they took this as a guarantee that their data is safe with Adobe. In doubt their ToS are the real test. If they won't use, or didn't plan to use their users data in such way: Why did they add that to their ToS? And if they now say they won't don't do that why keep it in their ToS and push people away for whom that is an issue?

Adobe could have been the trusty software publisher whoose products you rely on blindly, yet on many occasions they have shown that this trust is worth next to nothing to them. For once they could do a thing that build trust instead of acting like a drug dealer, but yeah. Monopolism.