And the government site has been updated to say this;Red list countries Applies if you have been in a
red list country in the 10 days before you arrive in England.
If you travel in any part of the aircraft that is accessible to any passenger for any part of the journey, for example the aircraft cabin, you need to
If you live in the UK and you travel in a part of the aircraft that is not accessible to passengers, you do not need to quarantine.
If you do not live in the UK and you travel in a part of the aircraft that is not accessible to passengers, you must quarantine in the place you are staying, except while you are undertaking the exempt activity or travelling as part of your work.
When you are in a red list country you should take additional precautions to minimise contact with others.Evidence You should show a crew badge or ID.
So that screws any corporate work that involves commuting............great.