The article said "But according to AdAge, "Corporate and government subscribers are excluded from the new marketing solution." We haven't verified (and Verizon refuses to say) whether the header is still sent for those subscribers or not.
Wow! Three downvotes for trying to help test it. When I tried the website on WP8, it had loaded seconds before on Chrome/Linux. But yes, looks like it's down and I must have hit the issue on the phone just when it began and didn't bother to test again on the computer. Sorry about the joke in the end, it was sarcasm.