At some point, isn't this just theft?

I know that the terms of license agreements probably reserve the right to do this in the fine print, but Warner Bros knows that people don't read those agreements, and they know that they're giving the perception of a purchase.

I always get extremely annoyed when people say "I'm technically not lying because I said X and you just thought I meant Y". Like, no, you purposefully made me believe something that was not true. You know what I was going to believe when you said X, you depended on that fact, and so it's still lying.

Similarly, Warner Bros. certainly wanted people to assume that these were purchases, so it's extremely dishonest to have fine print in there to be able to take that purchase away.