I believe corals, in aquariums, get enough light that they don't need to be fed. They have no weeks of diminished sun due to clouds, sedimentation, etc like they do in the wild.
I think growth is over rated and patience takes care of that. Don't worry, they'll all get too big soon enough.
I think the potential for polluting the tank is too great to be dumping free floating food into the water column, as I'm sure 80% of it goes uneaten and rots in the tank.
I would agree that certain LPS can benefit from spot feeding IF healing from fragging or other damage, or poor conditions that have been otherwise rectified (bad lights at LFS, etc).
Overall, I have never fed a coral and don't suffer from lack of any of the described benefits of feeding. Great growth, great color and overall thriving.
Based on that, I see no benefit, and a few downsides to feeding. Again, lots of people do with no apparent issues, but I don't think it's optimal for a tank.
There are so many things to manage in a reef, and while lots of things "work", only a few things are optimal. As always, IMO
