Food Quality vs. Cruise Length

We've cruised quite a bit over the years averaging 15 days per cruise
(some less some more). However our last 2 cruises have been 3-day
weekend things.

My impression of the food on these shorter cruises was that it was of
poorer quality than on the longer cruises we've taken.

When I say "poorer quality", I mean:
1) Presentation of the food was not as nice
2) Dishes were "simpler" - for example, the Prime Rib was simply a slab
of meat with no vegetables, rice or potatoes included
3) Fewer courses were served
4) One lunch was not edible (fish and chips cooked in oil that was cold
when the food was dropped in) although I was allowed to order something
else after my original choice was served.
5) Deserts were plain (ice cream available but no hot fudge or any
other sort of topping)

I could add other examples but you probably get the point of my post.

Is my experience unique or have you seen the same thing on the short
cruises you've taken?


Gary