If Disney ticketing decides that having a monthly without interest plan would sell more APs to
DVC members then yes it might come to pass.
DVC though is very different than Florida resident. I am sure Disney was trying to entice retirees in Florida to purchase an annual pass and to entice Florida residents away from the fantastic savings that Universal offers to Florida residents.
You have to always remember that when you want Disney to do something it has to be a benefit to them and not necessarily the customer. They are not a charity and I don't mean that in a snarky way but merely reminding us all they are a business.
Some DVC members seem to think Disney should be willing to give to them things simply because they are members.
Disney and even DVC will never see things that way. They see only what is in it for them.
If DVC feels this would increase sales to new members then yes they would campaign for it from Tickets.
It would be a nice convenience but I am not sure there is benefit enough to Disney and/or DVC to get it.
Might be a nice perk though for the points owned tier benefits, if they ever come out with that.