As you can see from the screenshot, there's no need for the "More" link. In my library, results only occur in five resources, and five resources are already shown.
Looks like this uses the same control as the Collections section, which MJ reported earlier (and I just now had the time to make a case for). I've included a link to this thread in the case also.
This should be fixed in 7.4 Beta 4 (7.4.0.0016)
