The Mill Creek deal is a minimal effort project from both sides. If it allows picking up formerly out of print titles fans may not have purchased that otherwise would go missing, then that’s not a bad thing. It’s barely adequate of Disney, but considering their recent track record thank heaven...
Not counting any chickens yet, but it makes sense if Disney has no interest in bothering with its vast reserve of content, including Fox titles, then they can still monetize their vault titles with a releasing company who will get them distributed. Hoping they up their game accordingly.