The tweet doesn't mention the claim of antibody resistance, and the article just says that the evidence for it is yet to be announced. The article says that no single mutation is likely to cause resistance but doesn't explain why there would be only a single mutation.
https://www.statnews.com/2020/11/05/spread-of-mutated-corona...
A more aggressive take: https://twitter.com/BallouxFrancois/status/13240857614493040...