I believe so, I never been on a
Disney Cruise before so I never knew what to expect. I tend to see everything as black and white (not capable of navigating and understanding the complicated gray areas) and usually I assume it is always take it or leave it. At least the good thing is that they have food venues near the pools that serve hamburgers, hotdogs, etc for dinner snd that would work for me. As for me, I usually eat at places like McDonald’s because the food is always separated out and in separate packages. The buffet allowed me to pick and choose what I like and have it separate and allowed me to pick a table to sit alone at. At least you could do the same as far as seating near these food venues as far as having a place to eat alone.
As for me, it is the same with formal nights (especially if it is more formal thsn tge no shirt, no shoes, no service dress code), I assume you are not dressed to the nines, you would be kicked out of the MDR (black and white thinking). This is another reason why I was wondering if there is alternative dining since the buffet is closed without an extra charge other than a tip. With Carnival, the buffet on the Lido deck is the alternative dining option for the MDR and Royal Caribbean, the Windjammer buffet would be the alternative for MDR. I never expect for them to open Cabanas (Disney buffet) just for me and just wanted to see if Disney cruise would be the right choice for my special needs.