John's post said:

"Specifically, we are reducing the amount of space taken up in search results for records that are already attached to your online tree when you do a search from your tree."

Note the "when you do a search from your tree"

When one is searching from their tree then they are- or at least should be- already aware of what is or is not attached to the person and thereby know the reason if something doesn't show in the results (you either already know it is attached or you know it isn't attached so you know it isn't found by the search engine).