Both horses are probably not over 1000 lbs and were a little overweight when the haying started.
While it's always good to have a horse on the chubby side going into winter, even "a little overweight" is not a good thing for some horses.
I can't find the video I posted of a vet that tells how to gauge your horse's body condition.
However, here's a link that tells how. Body Condition Score - CVM - Equine Genetics and Genomics Laboratory, University of Minnesota
Before you shoot the barn owner
, please read these instructions. You can tell if your horses are losing weight and if they're losing too much weight.
A horse's weight is often deceiving under all those winter woolies, so learning to feel their body condition is important.
If you can't feel any ribs at the top of the barrel, your horses are still too fat and I wouldn't worry about them not getting enough hay; to the contrary under those circumstances, it sounds as if they're getting enough.
However, if you can easily feel ribs on the lower portion of their barrels, then there is some cause for concern.
It is always an easy thing to get upset with someone, if you feel your children are not being properly cared for. Learning how to perform the Henneke body scoring test, will be a huge help in discerning whether there is basis for concern
I hope this helps in making a logical and fair decision.