Reporting on https://www.nu.nl/binnenland/6004310/gezin-uit-ruinerwold-ko... has already changed away from that they were actually living in the basement - it's now reporting that they were living in some sort of 'provisionally set up rooms'.

Don't be too surprised if in one or two days it'll turn out that this family wasn't as hidden or "off grid" as is being suggested, but that the organisations which are responsible from preventing this from happening were partly aware but poorly communicating with each other... so no-one actually took any action.