Trying to reassemble the derailleur after sobering up, Lucien realised 'Simplex' was misleading branding stemming from a Merlot fueled winter's night with no rosy cheeked French plumb to warm his mustache. But knowing that one day there'd be British folk undertaking the tedious chore of taking them apart got the blood rushing back into la saucisse de porc, and the patent papers were signed in a swift motion.
I think you are closer to the truth than you can imagine. Simplex was in Dijon. Dijon is surrounded by top-notch Burgundy wine.
There was bound to be side effects which got amplified over time. I'm convinced the design department would sit down after a three hour lunch and have a little competition amongst themselves who can come up with the most outstandingly wacked out ideas for what a derailleur should be. Looking at Simplex on https://www.disraeligears.co.uk/site/simplex_derailleurs.html you really don't know to laugh, cry, jump out of window, or get blind drunk.
This is finest, worth a read: https://www.disraeligears.co.uk/site/simplex_selematic_5_derailleur.html