It's insulting, and indicative of everything that's wrong with the idea of FP+. The very idea that you would ask guests, even if it's not required, what they want to eat several weeks or months from now is preposterous.
Cosmic Ray's and Pecos Bills are far overtaxed at meal times despite their atrocious (Ray's) or marginal-at-best (Bill's) quality. Casey's Corner I can deal with, but it doesn't have a "full" menu for dining plan guests. Meanwhile, the Terrace, Veranda, Tortouga, Outpost, Nook, and others.. sit somewhere between "seasonal operation" and mothballed worse than grandma's attic.