I'll do that when it's time to revive the project. I'm in playtesting now and my group has just reached the endgame. It's been a long haul, a year and a half to get here.
I don't think drivethrurpg is owned by a Hasbro company? They certainly have dealings with them, but in some sense they may be their primary competition.
I think they own the majority and publishing through them (or their sister company that does d&d products) lets you use and reference existing d&d products, which my book does heavily.
As such I want it out there for others to use but I wouldn't be able to profit from it, and I am okay with that.