The post is tagged non-fiction, but it ignores the option to "Complete your Disabilty Update Report Online (https://www.ssa.gov/ssi/text-cdrs-ussi.htm), which I found after following the link in the first sentence.
The form is an embedded iFrame from "Adobe Acrobat Sign", supposedly pure Javascript . It would be a bigger story if this form were not accessible to the disabled.
The form includes a place to attach two PDF, text, or image formats. "Attachments are limited to 5MB and 25 pages".
More likely he had a fun idea and ran with it to illustrate other problems he's had.
I can say from personal experience that the people on the phone for US Social Security are enforcing inhumane policies. A relative with a speech impediment and in serious pain who was unable to travel to the office for an interview had to be ready for a phone call. If the phone wasn't answered after four rings, have to reschedule a phone call. When the phone call arrived, they had to answer questions personally without assistance or "coaching". The caller couldn't understand the relative due to the speech impediment, and the relative was in distress and having difficulty understanding the questions. But we weren't supposed to help.