I don't think she needs to. She's obviously supporting her sister, because she's posted stuff of them out and about at some launch etc. Not addressing it doesn't mean she isn't supportive of Sam...I never signed up for standard brown fences, just a sponger called Greg to cover the expenses
in all seriousness I think she needs to address what’s gone on with ferne otherwise it makes her look like she’s supporting her and not Sam, family should come first regardless of the length of friendship