Agreed.

> The way this code was implemented, the code blocks the page from loading for 250ms, resulting in a much slower internet experience.

Of all the things to complain about that load on almost every web page you visit this seems like the least of your worries.

I agree this is in poor taste, pretty annoying, and could be leveraged to dupe unsuspecting people into coughing up their Xfinity credentials, but complaining about it slowing down page load is like complaining about the heat in hell.