Back last year it was thought everything will have been over with, and travel returning to normal early on. They weren't expecting another quarter of the year to be lost to covid restrictions, not so much in the UK but restrictions still strong in other countries.
So 400k could have been really achievable this year, but the slow release of restrictions around the world has knocked everything back. So hopefully the way this year is panning out, getting 250k would be good to see.