Thanks for the reply and sorry for typo, yes it's A E F K. The link you shared looks like the right one.
I wondering why there's only one seat map config for the A350 on the official Thai website and not much info otherwise.
You are welcome - then mystery is solved, I think. Likely Aerolopa got the D and E mixed up, so you were right from the start

As to wondering about the website, that is just TG's level of attention to detail on their website, I guess.