I got the same reply rather quickly, and when I opened another ticket with the simple follow-up question of "Did anything change on your end about a week ago" the response was exactly the same with that same link. In other words, they simply declined to answer my question. They instantly ...

I've not personally had this problem with Coinbase support. They've been timely on the few occasions I've needed to contact them. Maybe they just don't like you guys? ;) Just in case it might help, I'll open a support ticket with them from my end as well. A disclaimer might not be a bad idea though...