What bothers me is that they did not adjust the parking price to reflect the fact you have to walk roughly a mile each way. Not to mention carrying any merch you purchased going back to your car at the end of a long day.
But again, they're asking people to pay full price, for a lesser product. Not necessarily their fault it's that way, but neither is it the customer's, who is both inconvenienced and getting zero benefit from the situation. In the end, it's Disney that actually gains. They don't have the cost of running the tram operation, but they're still collecting on the portion of parking revenue that goes towards it.
I think $15 would have been fair, until tram service was started again. Perhaps it would have been around 2 months of slightly lower revenue for Disney, and it would have at least showed that they cared a little.
But people don't care in the end. So long as they get their Disney fix, they'll walk the walk.