WP is owned in some way by a publicly listed company in EU, thus their decision. I guess they do not see it profitable to pursue the US market anymore.
The funny thing is that as more gambling sites pull out of US, the more aggressive some will get that want to accept US players. I’m sure that these properties will be able to pull their resources together and come up with a viable solution for US based players. It might take 2-3 months, but its already in the making. I was mostly drunk at CAP euro but i think that’s the general trend…