Back on topic, I don't plan to be traveling and staying on property (in a studio mind you) with small kids if there is no affordable transport to and from the airport. I would much rather pay $1000 less and stay in a townhouse with many rooms, kitchen, pool etc.. if I have to rent a car & carseats anyways. I dont think they realize that the offset between renting a car and seats is equivalent to the upcharge to stay on resort, and there are many more perks staying offsite once the price differential is no longer a benefit.
They will either need to roll out an equivalent solution through mears which is quite cheap add-on (<$20 per person), my guess is that they will start using it as a promotion when they open back up all the way (Free voucher for minnie van / mears van to/from MCO included with 5+ day stays for groups of 4+) and dump the dining plans and discounts.
edit: to add on, minnie service from the airport was already available it was $155 each way. Which seems about the cost of what they are willing to use to create a promotion.