Im also expecting some of the 'fathers' charities to pick up on this and start protesting (if it hasnt happened already)
A lot of fathers get access only on weekends. And as such have houses large enough to accomodate the children when they stay. If forced to move to a 1 bed or even shared room property...they wont be able to get proper access to their kids.
I know this will be true of some mothers too, as joint custody goes both ways, but I imagine it will affect more fathers, hence fathers charities