The folks that make the MREs have made strenuous efforts to improve them; troops get questionnaires, the ones that are disliked are dropped from production and new meals introduced.
They'll never be Mom's cooking but by all reports, for what they are, they're decent, and some of the meals and items are really quite good.
It's different from Florida after a hurricane. You can't operate too well in a city that's 80% submergef, with one road leading in/out of a city, and a legion of Bloods and Crips shooting at rescuers.