The reference you provide Verci offers the same,
Insulin use is disqualifying from all the classes of medical.
Confused ATCO- I have also seen a submission from the Italians to Eurocontrol back in 2012. I gather it didn't go anywhere as there doesn't seem to have been any changes.
Eastern wiseguy- those are the circumstances that this person has been operating under. Condition now requires insulin, so loss of medical.
Shue- yes, he is looking at options, but a non-op role looks like the only way to remain in the industry.
Basically, the regs are not keeping up with medical advances. Except for pilots.