If there are too many calls which distract the ATCs from their primary function, couldn't someone arrange to:
Decombine the frequencies so that there is less retransmission and more ATCs to handle the workload and/or
Mark the busy strips on the maps and, if necessary, give them CTAF frequencies.
I agree that there doesn't appear to be many unmarked strips which are busy enough to cause much trouble but I suppose that you could say that any extra transmissions, at all, could cause a controller some stress when he really needs the frequency for something more important.
Don't think so though.