It's Amtrak, so Yes!
My Cunard experience was a while ago but the elevators were very crowded around meal time - which was my point. I know some five minute covid tests aren’t accurate.Was your Cunard trip pre pandemic? My understanding is that they are just resuming operations. Their website speaks of social distancing at meals.
Everyone is NOT going to take the vaccine. The US is going to give unused vaccines to foreign countries because there aren't enough US takers. That means that while the pandemic continues there will be Covid+ passengers on Amtrak. Do you advocate operating dining-cars at 100% capacity?
Even if everyone has room service, there will still be food cooked on board. With social distancing, however, the dining-car can operate with reduced passenger loads.
It would be inconsistent for the federal government that has promoted safety and social distancing for over a year to abandon the policy on Amtrak trains.
I was pleased on the two roundtrips I’ve taken on Amtrak during covid. The DownEaster was 50% AND because the cafe was off limits, had food/wine delivered by wait staff. I as a coach passenger tip 20% but on that trip 40%. I heard sleeper class don’t tip well. On Cunard it was 5% tip of the room cost and separate for wait staff. On an $1100 train fare $5 that some are leaving is too cheap- especially for the pandemic.
CVS sells a $28 Covid19 test. I might buy one even though they’re not that accurate - but might give some assurance when I arrive at my destination. Coach is 100% with mask on unless consuming food or beverages - AGAIN 100%. I don’t think the dining car should be 100% either.
If the dining car is set to 50% limit AND only 25% full - as democratic as Amtrak normal is, the 25% that’s empty should be filled by coach passengers who want to dine in the dining car.