On wmf wikis, most special pages are scheduled to update regularly via updateSpecialPages.php. However certain special pages are updated less regularly, and are marked as disabled for updateSpecialPages, as they are run from a specific cron job that happen at less frequent intervals.
These special pages still have the querypage-no-updates message applied to them, even though the page gets updates, they are just fewer and far between. This message should not be applied to them.
Two possible solutions
# Have a new configuration variable like $wgDisableQueryPageUpdate but only triggers the update being disabled, doesn't trigger the message being shown
# Simply override the message using the wikimediaMessages extension, to say something like "For performance reasons, updates to this page will happen less frequently than other special pages".
I think I kind of like solution 2 better than 1.