Not sure why I watched the whole hour's worth of content as I'm not involved tbh, but what I gather is that the whole speech amounts to, in essence, "yes it's legal (unless you want to appeal to empathy from a court); however, Unity is saying that they'll tell you how much you owe them and you have no way of verifying it, so with these one-sided changes blemishing trust while simultaneously asking for your trust in their estimations on how much you owe them... tread carefully"