Well, Adobe are publishers of the stock images so they can enforce such terms. What I mean is that the person selling a stock image to Adobe, Getty, Shutterstock or whoever has no say on what happens to it afterward. The publisher is going to assert universal rights in exchange for cash. If they narrow their own terms as in your example above, they don't necessarily create any sort of duty to the seller whose photo rights they purchased.

I should have been clearer and specified sale of rights rather than licensing of a stock image in my original reply, which I now realize is confusing.

Companies certainly can offer more narrow terms/commitments about what the stock images can or cannot be used for if they want to, but economically they're incentivized to maximize their own freedom, and not to negotiate a complex bundle of rights for individual images. Of course for journalistic and artistic images that are unique in some way, the original creator can negotiate.