I am also concerned about this comment, it may be a little more explicit.
If he had wanted to elaborate explicitly, I think he would have.
Greg Maxwell is known for his general outspokenness. If he is here being cryptic, I infer that he is choosing to be so.
An intriguing phrase of this nature (forecast of extreme winds towards Bitcoin) in the context of this thread made by one of the most recognized people in the forum, will always require an explanation of the meaning.
For my part, I take any GMax post, comment or opinion very seriously.