This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
While they didn’t directly address the retroactive license changes, they did counter the argument. The following text being relevant.
I thought I had read that that text had been conspicuously removed from their terms (which, again, might have been illegal in itself). Was it restored, or did I misunderstand?
I don’t really care if or how Unity reacts to the accusations. The fact remains that they did it, and their response is trying to deflect attention from the fact that they did do it.
This reminds me of the WOTC OGL debacle. They walked back the retroactive license change that they knew probably wouldn’t have held up in courts, but they maintained that they could have retroactively revoked the license. Which of course just nuked a lot of the goodwill they had with 3rd party developers.