That is indeed the intended behaviour of the identifiers tab of the observation search/explore page, which is where the link from the taxon page goes now. That page should be left alone. The proposal is to change the link on the taxon page to instead go to a new page which lists the people who made the most identifications of the relevant taxon, which is a function already available through the API, and already (partially) displayed in the top 10 identifiers list in the lower right part of each observation page.
In other words, change the link to go to a new page which actually does what’s expected, instead of linking to an existing page which does something subtly unexpected and can’t be changed.
Once we have a page that is searching the right thing, filters for Maverick, Leading, Supporting, or Improving IDs could be added, which would satisfy a couple of other feature requests.