I'm surprised it's taken this long for WotC to properly monetize their DnD IP.
To be clear, I don't condone OGL1.1, but the entertainment industry has become a huge multi-faceted monster over the last few decades, where there is a lot of money to be made, and owners of original IP increasingly want to ensure they have a share of derivative income, as well as some control over how their IP is presented by other parties.
Like anything else, if you don't want commercial imperatives to dominate ( WotC and other companies first duty is to their owners/shareholders, not their customers ), then you need to create entertainment content using permissive licences like Creative Commons.
Realistically, this means cooperatively creating new game systems that anyone can build on; the question then becomes, can players and content creators be persuaded to abandon their existing games systems? There is a lot of tribalism and "stickiness" involved, so it is unlikely that players will abandon WotC in droves.
Sad, but probably inevitable.
