Well the met office are quite rightly just telling it how it is, and quite rightly washing their hands of commercial decisions.
The very fact that the airspace was meant to open quite nicely at 0600, 1200, 1800 in a linear fashion implies to me that someone has been leaned on.
From the met site, the ash is hanging over us in precisely the same as for the past week.
I was thinking earlier, why doesn't willie walsh conduct a one man flight marathon in a 747 over the north sea? He could even thrash the engines to the max cruise for prolonged periods....
At least it isn't the case, per the Protect and Survive videos, that fallout is deadly dangerous ( on the ground at least)