essentially its similar to product sponsorships and product reviews. Product sponsorships give the sponsor all the power to censor parts they dont like. Reviews should be honest and reveal something is good or bad.
they tried to say in order yo get into beta you can only say good stuff, so any online footage is similar to a sponsorship rather than an honest review
usually when it comes to collabs, its licensing issues, especially if aaid product or IP is handled by different bramches or organizations internationally