Originally Posted by
intuition
If seatmaps are to be trusted, these are just 102 seats in total, of which only 36 seats in real Y.
Just like you say, AA has them configured for premium routes. They are an airline of size and can afford to subdevide their fleet and have planes optimised for such use.
For AY, they are not catering to a premium market in general and their thin routes I imagine are not premium at all. So as much as I'd love to see anything remotely like the AA config, I don't think AY has any use for it.
Also, Finnair is such a small airline, so I think they wouldn't get a sub-fleet of planes that only works in fringe operations. They would get a plane that can work both longhaul and shorthaul and thus have a medium haul J cabin and a rather large Y cabin.
Oh, I'm not suggesting anything remotely like the transcon 321T for AY, nor for AA that matter when it comes to the XLR variety. The 321T is a special aircraft for the premium routes. If you read my earlier post, that is what I'm suggesting AA might go with for the XLR. And I have flown the A350 several times from HEL to LHR, so use on SH routes obviously can be done with a plane configured primarily for LH.