Tell your hubby it's not HIM they're scared of, just unfamiliar people in general.
I've been feeding my cats for 9 months, and 3/4 of them still run away the instant they notice I'm around. Sometimes if I sit really still, some cats won't notice me when they come to eat, even if they glance to the door...because if I don't move, I must be just part of the furniture like the pool table and floor lamp!
Sometimes if I move very slooowwwly into the view of the window, they still won't bolt - some do pause in eating, but then I stop still and a few moments later they might go back to eating.
My feeding station is directly across from the glass patio door (was double glass, but I put a screen door for one so I could keep it open in the summer and keep my cats in and keep bugs out). Since I can't stand for very long, I have a little folding chair that I keep nearby. After I put out the food, I sit there and watch the kitties - as I said, if I'm already there and sit still, they don't seem to care (well...most. Rune still bolts if ANYthing is different about the patio - inside or out. I'm surprised the magpies and squirrels don't scare him!)
I only sit inside in the winter. In the summer I have a patio rocking chair that I sit in. As I am both a little closer, more noticeable, AND without a barrier, the cats get more cautious. A couple of them will eat, but stay on alert. Some stand off a ways and watch me...and watch the food longingly. Usually if I've already had plenty of fresh air, I'll leave and let the more scared/cautious ones finally get some food.
SO! Tell your hubby that they're just like any other wild animal, and don't trust humans. Though if he does spend enough time around them, some will eventually get used to him. I've heard stories of people eventually being able to pet their ferals... I haven't gotten that far (yet).