Re the eu treaty
It says that people going into another country should either be working OR be looking for work OR be able to sustain themselves, e.g. If their partner is working and their wage covers the needs of the family.
In effect, the one thing you can't do is to get somewhere, start claims benefits and plan to live with those for the rest of your life.
It's VERY different than the situation we have all being talking about ther, SAHP who relies on her spouse wage, self employed people or part timers with low wage etc...
These people are totally ok to stay
In the uk or any other eu countries according to the treaty.
Finally re paying for the health insurance, if the only thing needed was to have paid for the NHS. This is very easy to do, and not that expensive.
But again, this needs to be clearly outlined, quite the opposite, and this has NOT being the case as manic pointed out.