If something is "disergonomic" then it negativises the the ergonomics of a system (ergonomics is an architectonic(system) property). Traditionally, diserganomics come about due to bad design or bad implementation skills, but there is a demonstrable sense in which diserganomics has been, and will be, intentional, that is, planned diserganomics.:
Consider the Godaddy Control Panel: you don't need to have seen the GCP to be able to understand the planned diserganomics of the GCP. It is designed not to be ergonomic but to be disergonomic; it approaches maximally awkward - it wants you to spend as much of your eye-time on its adverts and upsells as is ergonomically possible. That is business rational (Duh!), but it means that the Godaddy customers get their precious time wasted.