Nor do Ryanair fly Florence to Beauvais, in fact I can't find any low costs airlines that flies Florence or Pisa to any Paris airport.

And to expand my point about point to point, ALL low costs airlines in Europe are point to point and none of them give a damn if you have an onward flight, all they are paid for is to (eventually) get you to your destination airport even if they use a wheeelbarrow to do so

EasyJet flies Paris Orly to Pisa, but it still doesn't make the above story make sense.

I'm going to have to get new glasses