Why not? They don’t need to get top grades to pursue careers and if they do turn out to be academic they can still be doctors and lawyers like other state kids.
They don’t need to mix well socially or learn the manners and etiquette. In fact they could probably do with mixing a bit more widely.
The beefed up security could help the new school in general as could their contribution to the PTA. Lots of state schools do Forest School and they could pay for extra sport coaching.
Sounds like a plan to me.