Nova, I think you've entirely misunderstood the purpose of this idea.
Regardless of the table data being loaded or not, a mod that wants to include the Apollo currently needs to get the assets (POF, textures, effects) and write a table entry. Under MediaVPs 3.9, all the mod needs to do is add a table entry. In fact, all they need to do is copy/paste a table entry.
I was going to set it up so that all they needed to do was add $name: GTF Apollo to a table, but for reasons stated above that makes things more complicated.
Nightmare seems to get it. FSU tbm data would overwrite mods that use a ships.tbl. So now they need a tbm to override a tbm that overrides their tbl. It's a non starter.