To clarify your intro: The requirement for a negative PCR test irrespective of origin only applies to arrival by airplane - which is the focus of FT anyways.

I noticed the same inconsistencies a few days ago when reading the ordinance, particularly the point about transit.

To further complicate / confuse, article 5 (lit 1+2) say that airlines are obligated to verify the presence of a negative PCR test result prior to embarkation on a flight to Switzerland, and that they have to deny boarding to people without a valid, negative test result. Unlike in articles 7 and 8, no exceptions are specified in article 5. This leads to the wording on the Swiss website, stating that all passengers, including transit pax, require a test.

The ordinance seems shoddily and confusingly written. It would be good for a probing journalist to grill the responsible authorities on the inconsistencies.