The thing is, it’s a newspaper called The Daily Express that have been around for a very long time; why would they seek clarification or source to confirm the DE’s dubious articles?
Same thing with The Telegraph, or the Guardisn, people happily take it without a pinch of salt.
What's been said above, plus The Express is now able to set up the angelic, virtuous nurses vs the ugly, grasping rail Unions.