I think you didn't understand what I said. Nintendo wasn't implying those publishers will support switch 2 (like the thread's title makes it seem). They just showed publishers that released games on Switch, that's all. They were just talking about how - with the switch - they were able to get more 3rd party support.
So this doesn't mean, in any way, that publishers who are absent from that image won't be releasing games for the Switch 2.