As explained in Data type regulation policy and membership fees, the idea is to enable vendors to collaborate on abstract, reusable interfaces in a well-regulated fashion. In the longer term, we will use regulated vendor namespaces (such as regulated.zubax) as a base to define standard vendor-agnostic profiles. Keeping such generic namespaces in one repository is necessary to reduce the risk of fragmentation and to simplify their maintenance.
I don’t think the name of a namespace could prevent other companies from using it in their systems or products.