Aumary was and is able to do it right now. What else is the point of the checkpoint?
The point of the rolling checkpoints is to prevent a deep reorg. So even if Amaury were able, why would he want to do that?
YOU.MAKE.NO.SENSE.
Coming back to the original post, rolling checkpoints negate 10 blocks worth of proof of work.
BCH is not proof of work. It is proof that work doesn't matter so much (in BCH).
