I agree, leave Catherine out of it.
And it’s not actually clear whether Catherine was the one present. Scobie’s described the other person as the Princess of Wales. At the time of the alleged remark, that would have been Camilla, albeit she didn’t use the title. That little shit Scobie’s, having let the info slip “accidentally”, denying having anything to do with it and nonsensically blaming an innocent translator, has never had the courage or courtesy to explain who he was talking about. It suits him for everyone to believe it’s Catherine, because he bloody hates her, as is clear from Endgame and his characterisation of her as a Stepford Wife.
At no time have Harry and Meghan done anything to correct the record (the leak of the identities can only have come from them) or protect Catherine from their rabid, hate-filled fans (for what Harry has described, if it is at all true, as unconscious bias, spoken by someone other than Catherine). And there are plenty of rumours that both of them are on SM, posting and knowing full well what is said in their name. And even if they aren’t, they have set themselves up as the champions of anti bullying on line. But I reckon their concern stops at the threshold of Montecito and wanting to quash all their own negative press.
So why on earth is it incumbent on her to welcome them back in? I view the very suggestion as suspicious, because it is setting her up for a fail. If she doesn’t get involved, she’s the bitch with the key to reconciliation who won’t use it. If she does get involved and they come back, the rabid SS will see this as an admission of wrongdoing on Catherine’s part. If reconciliation fails or if they betray the RF again, they will find a way to blame W&C for their “coldness” and “envy”. It’s a no win.