Pool hopping is nothing but an automated way of doing what people tend to do anyway:  move to a different pool when it isn't making money like you want.  I think the operator of that pool has a negative view of it for whatever reason and this was an opportunity to "fight back"

I appreciate him reconsidering what I think was a bad call, even though there was nothing forcing him to do so.  I also appreciate him being big enough to reverse himself in public which is very tough to do sometimes.