I think their sneaking to see Toni only helped the writers. If they would have told Joan, maybe she would have tried to confront "Toni". That would have meant getting Jill (not) or someone to play the character.
They "saw" her. She tied up her loose strings, now move on. LOL If it was to be all of that, plus some, they should have given Jill/Toni her pay raise.
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