I wonder if there's an advertising law angle here. If a company sells multiple products in the same product category, they really shouldn't be allowed to have them branded so that they seem like multiple companies. The main name/logo on these products should be required to have something that makes it clear that they're all from the same company.

They can pick one of their backpack brands to keep (and eliminate/sell off the rest), or they can tack "VF" onto the front of each brand name, or something like that. A customer shouldn't have to dig into the fine print or do research to know whether two products are from the same manufacturer.