https://www.youtube.com/watch?v=m5XoO9RQYtYIf this is the response of Scottish Labour, then we should probably look more at their chances of losing Glasgow North East as well than their chances of regaining the lead in some of the other seats.
First of all, it is quite clearly a lie and one which can easily be shown to be just that. For example by looking at the actions and statements by Labour after the 2010 election.
But also it suggests that no matter how favourable the composition of parliament might be for Labour, they will refuse to form a government if they are not the single biggest party. I'm not really sure they thought this through.