I don't think criticism of the remain campaign really matters.
A campaign supported by the governing party after an unprecedented economic crash on a referendum it instigated itself on the basis:
"Things are really bad right now. In fact, for many of you, they've been going backwards for decades. Here's an opportunity for change which we think you should have to the option of choosing...
...But you definitely don't want that, oh no, what you want is more of the same from us!"
I mean, come on, that's a losing wicket from the start.