Well beyond the obvious orders of magnitude... the movie business is inherently a risk proposition.
Hasbro (like most other companies) primarily relies upon contract manufacturing. They only have two factories of their own, and they aren't significant to their overall manufacturing. They are already on the same footing as a company like Disney. Put in the volume, and you get the access to the plants.
The Hub? They already have cable channels (XD and Jr) for that market.. and the Hub is a joint venture with Discovery. The Hub doesn't represent a huge income potential to Disney (lumped into a pile that only made 25 million last year). The big money franchises (Transformers, GI Joe) are already tied up in movie deals.
Unless you expect great potential from NERF movies or My Little Pony... this is more liability then gain for Disney.