Disney always tries to cater to the largest market as possible regarding age ratings (ESRB, PEGI, etc) and post the "glory" (or at least better) days of licensed games in 5th gen that has proven to be very difficult for them. Licensed games aimed at children don't sell nowadays compared to the healthy sales on PS1 of Disney's Tarzan, Disney's Hercules, Disney's A Bug's Life, etc.

Nowadays, you might as well ignore the age rating and just make your game/movie the way you want to because the majority of the mass market will play/see it regardless. For instance games like Call of Duty and movies like Deadpool are very popular among people younger than the recommended 17 years of age.

Disney had an admirable run with these wannabe mature games with an age rating of 3/7/12 and some of them were rather expensive like Split Second: Velocity, Pure, Pirates of the Caribbean and Tron: Evolution. But it didn't work out.

Though, I do think Disney will give it another go after they've seen Warner's success being a no name in the games industry a few years ago to being 2015's 3rd most profitable publisher following EA and Activision Blizzard thanks to games like Batman, Mortal Kombat X, Dying Light, Mad Max and Shadow of Mordor that've sold to a large market in spite of their mature age rating.

Disney has already expressed interest in a bigger role in the console and PC video game industry but in order for that to happen they'd have to improve their ability to attract great developers and they'd also have to cater to 1 specific market with each game. Mature looking games rated E for Everyone rarely sell that well.