I like what they've done to improve the page. The only thing that sticks out a bit is the "yet" in "... is not yet participating". It sounds a bit pushy, like they are trying to pressure the company into participating.
It sounds better than "...is not participating" as that sounds like the company discredits the site. I think they should put "...is not officially participating" as that sounds like the company may or may not be part of the site.
I think it has alot to do with the color of the boxes too, swap the "not yet participating" color with the "opted out" color and it comes across alot less threatening to me even with the same copy.