I think this is the most important part of this story. Certainly, if I were one of her potential customers I would be remembering that she was willing to talk about the Duchess of Sussex in questionable terms, and would wonder what she might be willing to say about me. Discretion is everything at this level, and for whatever reason, Emilia Wickstead failed that test.
If she didn't say the things that were attributed to her, she should have issued an immediate and strongly worded denial, and she didn't, which makes me think that she did say exactly what the DF claimed she did.
No predictions from me over whether this will affect her working in the future with the DoCam, but if Catherine does wear Emilia Wickstead in the future, I will guarantee that there will be stories about how that proves that Catherine and Meghan don't get along, and that it was intended as a deliberate insult, etc.
Because that's how the Daily Fail rolls.