Yes I see what you mean (my bolding):
- Third-country nationals (non EU/EFTA), regardless of their visa obligation status, wishing to enter the Schengen Area for a short-term stay (without exercising a gainful occupation) not exceeding 90 days in any 180-day period must be in possession of a recognised travel document that meets both of the following two requirements:
- The travel document is valid for at least three months after the intended date of departure from the Schengen Area; and
- it was issued within the last 10 years (the date of issue only concerns entry into the Schengen Area).
The travel document’s date of issue is the determining factor, regardless of any decision made by the authorities to extend the period of validity.
The two conditions mentioned above do not apply to travel documents of third-country nationals who hold a valid residence permit issued by a Schengen country,
List of residence permits issued by Schengen Member States (PDF, 968 kB, 14.05.2024)
(Annex EU-2 to Visa Handbook I)
or to persons who were issued a valid category D visa for a long-term stay by a Schengen country (national visa, considered as equivalent to a residence permit[1]
). In such cases, the travel document must be valid at the time of entry and remain valid for the entire duration of the planned stay in Switzerland or in any other Schengen country.
Unfortunately even if you had a print off for that page and showed it to a BA agent, I think they would follow timatic and be very reluctant to allow anything other than what their official source states.