And you really think, people who are willing and able to buy enterprise support for their Linux distro get confused by the naming? Sure, there’s that one confused dude, but you also have people asking Facebook where they left their keys.
OpenSuse is essentially free marketing for SUSE, nobody would know them otherwise. Why would you give that away?
Suse is not a huge company, it has neither a large enterprise backer nor any killer features, and its market share is relatively small compared to Red Hat or Canonical. Throwing away free marketing while alienating a relatively passionate community is a kind of brainrot only MBA can come up with.