Maybe the "bandwagon" = best practice, based on years of experience and trying to correct for unfortunate events and incidents that have gone before? Ever been 10 miles up the road to find the forecast was spot on tilos?
Meteorology is an inexact science, however people expect an exact answer that meets their exact interpretation with no flexibility, and seem shocked and outraged when sometimes it doesn't happen like that.
EI Premier, indeed, it looks like those making the decision regarding airspace availability are basing it on modelled AND observed data, which can only be positive.