Is SQ the only carrier prohibitting the sale of a particular cabin on alliance tix?

[Rejuvenated]

What I mean by "alliance tix" are those RTW, Circle Fares offered by alliances. It seems from my understanding and knowledge that among OW, *A, and Skyteam combined together, SQ is the only airline that prohibits travel on one of their cabin classes (380 suites) for those type of fares. Am I missing any other carriers or is SQ really the lone one here?

[SQflyergirl]

Yes I think SQ is alone in this one.

I do think though they would argue that First isn't "offered", and they would argue it's different from being "prohibited".

There is no other RBD other than R for suites, as opposed to being in a perpetual A0 inventory situation, which would be the RBD needed for RTW's/CCA's/CCP's. The latter scenario would be prohibiting/blocking, the former - somewhat more contentious.