There is still a way to contact them, and it uses the same form as it has for a long time now. You get to the “form” by clicking “Contact Support” from the Support->Contact Support menu within the Control Panel.
Once there, you have to read the whole page. Because of the recent widespread problems, they point you to a “Critical Announcement” after displaying other support contact tools (System wide outages, etc) before offering the form. This seems to me to be highly reasonable, as there is no need for each user to submit a support ticket, when the whole network is “borked”.
Alternatively, click the “use this one” link you referred to and it takes you the “Critical Announcement”, where the link to the “Form” is present as "Still need to submit a support request? Click here! ". It’s still there, guys. They just want you to read the announment before submitting the ticket.