The only reason you can hear any of his vocal effects in this song is the sparse arrangement. Focus there first, then worry about the vocal effects.
There is a time and place for sparse music and a time and place for dense, heavy, loud music. You've made it clear in the past, Scott, that you prefer the light airy kinds of music. No problems there. But this is a "discussion" about how vocal processing affects the sound of songs these days - how much a part of the "modern sound" is determined by the way the vocals are processed... A sparse production with a thin, light reverb, no compression vocal isn't going to get close to capturing the overall sound presented by these examples.
We agree on one thing that all kinds of music have their place. As for my stating my preference for light and airy music, I think you might have me confused with someone else. A very brief listen through my soundcloud tracks will reveal that I probably lean the other way than what you are stating is my preference.
The point that I'm making in this thread is that these type of effects on relatively quiet or subdued vocals; like Ed Sheeran's vocals in the example; really only have their place when the arrangement is sparse to begin with. If the mix was any more dense in the example song - say there was a keyboard added in to the mix, or leads throughout, ability to hear the effects on the vocals would quickly fade. The only time this is not the case is when the effects are intentionally over the top and they are not in the case of the example song given.
Floyd, I've listened to your songs, and you do not 'over-arrange'. You show restraint and taste in your use of BIAB and arrangements. It's clear you practice critical listening to existing songs, and apply that learning to your arrangements. Focus on vocal effects would work in your arrangements; not saying that's necessary.
Sorry if you feel I wasn't following the point of the thread.