Casual observations used inconsistently on taxon page

Platform: Website

Browser, if a website issue: Chrome

URLs of any relevant observations or pages:
https://www.inaturalist.org/taxa/51648-Clintonia

Screenshots of what you are seeing:

On any given taxon page, the number of observations for each child taxon is shown on the “Taxonomy” tab. The number of observations shown includes the casual observations whereas every other data item on the page excludes the casual observations. I believe the number of observations shown on the “Taxonomy” tab should exclude the casual observations for consistency with the rest of the taxon page.

For example, on the taxon page for genus Clintonia, the number of observations for each species in the genus is shown on the “Taxonomy” tab. These observation counts match the observation counts on the Explore page with verifiable=any (which includes casual observations):
https://www.inaturalist.org/taxa/51648-Clintonia
https://www.inaturalist.org/observations?place_id=any&subview=table&taxon_id=51648&verifiable=any&view=species

On the other hand, every other data item on the page excludes the casual observations:

Added an issue here: https://github.com/inaturalist/inaturalist/issues/2864

So we looked into this, you can read more on the github issue above. But briefly, we decided to leave this as is because fetching current counts for verifiable observations here would be a serious performance hit. I understand there is an inconsistency, but in my recollection it hasn’t been brought up before, so removing the counts would likely be more disruptive than keeping them.