Yes, nobody thought to ask Tones, if criticisms should be kept private, why did he not follow his own advice and call Malcolm directly?
Tony, of couse, may have had a number of reasons.
1)Malcolm never listens to advice from anyone so it would be pointless.
2)Malcolm won’t take phone calls from Tony.
3)Tony knows that hypocrisy is so common that it’s rare that anyone is criticised for it, so this was another great chance to bag Malcolm, thereby reminding people that there was a much better PM recently.