I think this statement on page 7 of the restrictions document is relevant here:
Retired Staff and dependants may be asked to vacate their seat in First Class accommodation but they do not have to.
I am very much afraid that is trumped by
Due to capacity constraints / social distancing, the onboard capacity for an Avanti First Class experience will be limited, whilst fare paying customers will be given priority. If asked to sit in Standard Premium, then tea, coffee and soft drinks will be available via the onboard shop at a discounted price.
which is garbled English into the bargain. I think they mean "onboard capacity for an Avanti First Class experience will be limited,
so (or
therefore) fare paying customers will be given priority."
No mention of any differences between serving or retired staff either, I am sorry to say.
What is really disgusting is that the Standard Premium section starts by saying
Standard Premium accommodation
Standard Premium accommodation is currently only available as an advance purchase ticket or as an on-board upgrade for members of the public and at the moment is not available to holders of any Staff Travel Facilities.
which is why I probably hadn't bothered reading any further. Why isn't the middle quote above ("Due to capacity constraints...") put in at the beginning of their restrictions?
The new rule is also the diametrical opposite of the previous one:
All customers, including those using rail staff travel facilities, are strongly advised to obtain a reservation for their chosen service prior to travel.
If you do not make a reservation and your intended service is already at capacity, you will be unable to board
The fact remains that we were booked into that coach by an Avanti travel centre, the restrictions say we are not allowed in Standard Premium, and that the Steward abruptly and publicly tried to throw us out of first with no explanation or courtesy.