One of the suggestions was that players also need their passports to move clubs so if they were expecting a late transfer they might not have been able to hand over that document to Russian office.
James Lawrence saying he needed a day to drive to Berlin and back to process his documents so might be that players couldn't get the time off.
I don't think we can assume anything.
P.S. correcting my earlier post, Finland game is on at 5pm tonight rather than 7pm.