Is that so certain? To be able to make claims for what you can use the output, can you do it without making any claims for about control and ownership of the output?
Of course, they can revoke your right to use the software, but if it goes to court, that would be interesting case.
If there’s no copyright in the weights to begin with, the only restrictions you have are the ones you agreed to when you accepted the license agreement. Find the weights somewhere else and you don’t have to worry about the license.
I don’t know why there isn’t more discussion on this point and people just assume there’s an underlying copyright basis to the licensing of weights. As far as I know that isn’t settled at all.
Of course, they can revoke your right to use the software, but if it goes to court, that would be interesting case.