Menus change
People are hating food they haven’t tried.
...or just mourning food they loved.
I'm not trying to be overly dramatic, but I was trying to think this morning of a single WDW restaurant menu overhaul in the last 10 years (that is, since we made our first trip as a family) that resulted in an improvement to food quality and variety rather than a downgrade. Granted, we're talking about a total of only 6 trips, although each involved extensive research into menus and food options. Maybe others can suggest some examples of improvements, but I can't think of one.
Even over our approximately 4 dinners at 'Ohana during that time, there were cuts and negative changes to the menu. Sweet-and-sour chicken skewers and lettuce wraps went the way of the buffalo with no replacement, and the fan-favorite honey lime salad dressing was subbed out for a vinaigrette. Meanwhile, prices went up more than 30
%, from $42/adult in 2014 to $56 by 2020. While none of those menu changes are a big deal in the grand scheme of things, they fit the "declining by degrees" and "charging more while delivering less" patterns many have observed.
I think that the strong emotional reactions many are having reflect their feelings about that larger trend: it's not really about a few noodles. They're frustrated that WDW seems to be endlessly subtracting, trimming down, and diminishing experiences that were originally built upon a promise of quality and abundance.