I would agree. One thing about pollen (or pollen sub) I was told by an older beek and found to be true (same advice given here). If they can't police all the way around it, hive beetles will lay eggs in it. I use inner covers and most of them flip to allow a bit more room over the frames. I will flatten down some pollen sub mix (about the size of a chicken egg, half that for a nuc) in such a way that they can reach over and under it. I usually put it down as several strips or pieces going out from the center of the brood nest. If they are bringing in tons of pollen then it's overkill.
During times where I have it thick enough to touch the top of frames and also the inner cover, I will pop off the cover to reveal little white larvae getting started. Basically, I don't give them more than they can consume in a few days. I have found that the larvae benefit from a marked increase in royal jelly production using pollen sub (and sometimes pollen), but again only if they are not able to gather lots of it.