I don't know what was discussed between C and H prior to this visit so there's no point speculating.
What I do think is that the optics of it don't look good for H.
When you've publicly trashed your family, playing the public "look how supportive I am card" is really grating, especially when (again) it's announced in a flurry of PR and done in a high profile way.
I don't blame C and W for keeping him at arms length. He and M are total loose cannons who seize any and every opportunity to monetise their royal connections at any cost, whist failing to hold themselves to the standards they criticise others for not meeting.
I can't fathom why some people keep supporting them in the face of considerable evidence of their lies, evasion and at times, pure malice.
H could have issued a simple statement saying he'd spoken to his father to wish him well and was looking forward to meeting with him soon.
Frankly if he really cared about his father it would be a nice thing to arrange for him to spend time with his grandchildren....he doesn't seem to think that requires any urgency does he?
It's all just fodder for the next instalment of Spare/another documentary. He will get a whole chapter out of this/15 mins of air time.
The creation of drama and action for $$$.