Well, his original plan was bit different, now wasn't it?
Kind of funny way to make right for the initial attack in first place by saying "if Stalin wanted to occupy Finland - there was nothing that Finns could do about it".
They attacked, with the propaganda saying 'to liberate finnish working class', so it is irrelevant what was done 5 years afterwards.
This nice big empire with the sunny father, had it not been evil, wouldn't have attacked Finland in first place.