Hold on, we're just talking about the license, aren't we? I thought the question was about why they were using the OGL, which is very much just the legalese/contract.
Some people seem to think the OGL is the "blood" of these third party companies, without which their business model doesn't exist. Surprisingly -- but I have trouble believing this -- some think OGL-licensed games are at risk even if they are unrelated to the D&D franchise and its gameplay mechanics (I hope this is just a misunderstanding!).
But let's say this is just legalese. Does it seem wise to let your core product be sold under contractual terms defined by your direct business competitor, which by their own admission has no interest in "funding the competition"? (they've been quoted saying this).
I think it's probably fine. Like, if WotC is willing to sell their product on these terms, it's probably safe for me to sell my product on the same terms, especially if we're direct competitors. Obviously there's a risk, but there's a risk in not competing too. Compare price matching.
> No, not at all? How is it "under their control"? They can publish a new version of it but that has nothing to do with you unless you want it to.
It is under their control because they are the only ones that can modify, add or remove provisions to the license. This is like a file format where only one company can determine the standard: it sucks for everyone else! At best you're playing catch-up, at worst the owner can bar you from using the format. A consortium would be less risky.
And apparently the current situation shows it was very risky indeed!