To be clear, there are actually two terms now in the bill. There's the lower-case “advisory body” which has still been retained in a number of provisions, and then there's the new formal title that's been given as a result of the amendment that was passed. I can't tell you that there would be a definitive legal problem, but I think your observation that introducing a third term might create some confusion.
On June 9th, 2021. See this statement in context.