Except - sometimes the observer who Opts Out - is THE taxon specialist, with a carefully researched ID. And they in turn, get tired of IDs pushed back by well meant but wrong IDs. So I wouldn’t exclude them.
The default to RG was an improvement. March 2020 https://forum.inaturalist.org/t/default-to-research-grade-photos-in-the-taxon-photo-chooser/9424/15