Fermented feed is very little effort and I find there's a lot less wastage. It also keeps birds well hydrated in hot climates. It's the same technique as setting up a sour dough starter. You are using the yeasts that naturally occur in the air around us to ferment the feed. Just wet feed can harbour botulism which is very dangerous to birds.

OMG- you really didn’t have to search that hard for reasons not to ferment. Just not having enough space would have been acceptable.
I've fed chickens, quail and now our ducks on fermented feed and they all love it. Once you get your mix going you just add more feed and just enough water to make it an oatmeal consistency to the container that has a little fermented feed left in the bottom and it will be ready to feed out again the next day.
I was tired of watching our ducks almost choke on dry feed (then spit up half their feed while gulping down water to try and wash it down) so that's what gave me the motivation to start up fermenting again (selling our old house, moving to the country and living in a caravan for 8 months, with our 2 children and 3 indoor cats, while our new home was put in place meant I hadn't been able to do things like that).