Because the public didn't know, so it's informing them, and likely a precursor to some form of policy release/action. Or... the cabinet figures weren't entirely accurate.
While I'm not disagreeing with the dangers of private infiltration of the NHS and how the Conservatives have, to some extent, allowed and facilitated this...
... the real issue with the NHS is gross mismanagement, an ad-hoc and disorganised leadership structure, and a lack of any coherent national strategy.
To some extent, the NHS is better funded now than it's ever been, but inherent inefficiencies (won't post again but search up some of my posts) cripple it.
If we want the NHS to retain free at the point of entry and be a world leading medical provider, it needs a root and branch reform that'll likely cost decades*.
*and lots of money (and sizable yet necessary redundancies) in the here and now.