Right. Corporations don't need/want to sponsor attractions anymore. In the 80's, it was great advertising... then the internet happened.
If you guys notice now, there are almost no sponsors left in all of Epcot. Now the only sponsors left in Epcot are Chevrolet (GM) and Chiquita (they also sponsor Crush 'n Gusher). Every pavilion used to have a sponsor or multiple, some countries were even sponsors. Now we have an entire Pavilion that closed down due to loss of sponsorship and both sides of innoventions that went dark due to sponsor loss.
The good thing is that there is a plan to fix the mess they've gotten themselves into due to relying on sponsors so much, but don't expect much of a cohesive theme.