With any cost cutting measure, there will be some who aren't negatively impacted.
If Disney were to add a "room cleaning surcharge" where if you opt out of housekeeping, you no longer have to pay the $4.50 room steward tip, but if you wanted the same level of service as before, you have to pay the tip plus another $30 per person per day (e.g., more or less the same cost differential you and I have with Palo), even if a few guests may be better off, most are not.
When we go the MDRs, I look a the tables around me and the people I'm sharing a table with and almost everyone gets the appetizers, soup/salad, entrees and desserts. At restaurants on land where everything is a la carte, it's the opposite--we usually just get an entree and maybe a salad, and it seems most diners do the same. The inclusive aspect is a big part of what makes cruises fun for a lot of people. Hope it doesn't become a trend. Otherwise we have future of looking forward to upcharges for steak in the MDRs, for "preferred seating" in the theaters, for rides on the aqua duck or rounds of mini golf.... some won't care, but the lack of nickel and diming is part of why I'm willing to pay the higher cost of Disney cruises in the first place.