Spare being released in paperback is re-emphasing all the insults he has thrown at his family, it's all being rehashed and becoming fresh again. No fricking olive branch there, don't know how they have managed to spin that one.
If he really wanted to make any effort at reconciliation, he would have written a foreword to apologise for the hurt the book caused his family, admit he was angry and some of what he said was said in anger and not absolutely accurate, regret how his actions and words meant his lovely sister in law and his father were subject to some awful slurs about being racist which was not true in the slightest.
Even if his contract with the publishers didn't allow him to retract, he could always use a statement from 'The office of the Duke and Duchess of Sussex' to walk back some of his awful insults at his family.
But continued silence 'silence is complicit'. Way to go Aitch.