Now, back to the trams.
Anecdotal background: As a kid, it may not have been said out loud, but part of me always considered the trams as a ride. On one hand, it wasn't the best ride, but on the other hand it didn't use up any of my precious A-E tickets. I almost always looked forward to a ride on the "open-air trackless train". Sometimes in the summer, we would ride our bikes to the hotel, and in addition to wandering the grounds, we would take the "Hotel Tram" over to Disneyland, just for the ride, and to get a glimpse at the front gate, and hear some of the sounds.
Present day, I would like the trams to be an option for those parking in the structure. I'd like everybody to have that choice. (I'd also appreciate a sign at the bottom of the escalators, using a little A.I. to give folks the estimated time waiting for and riding a tram vs. walking the distance.)
I understand both points of view. Some people observe that in a full day of walking around the resort, the distance to and from your car may be a small percentage. Others may want to conserve every little bit of energy for walking from one fun thing to another within the park itself. Again, I'd vote to give people the choice.
I don't doubt that there are people at Disney that see not running the trams as a cost-saving occurrence. There are also others wondering why paying customers aren't getting to their store, restaurant, or vending spot sooner. I'm sure there's also the DTD interests that would prefer getting as much foot traffic as possible, so that may come into play as well.