Right now I'm thinking about it in the way that I think about Let's Encrypt.
Let's Encrypt has their own infrastructure, governance, etc., but I don't use Let's Encrypt products to interact with Let's Encrypt. Instead, I interact with Let's Encrypt via products like Certbot from the EFF.
If OpenELA's going to provide source, and I access that source through builds provided by CIQ or SUSE or someone else, then I'll be thinking of it in the same way as I think about Let's Encrypt.
If this is a commitment to a set of source then the players can compete on ease of use, support or other stuff.