I suspect there is a language barrier here.
I can see where you got the impression that I thought it was, and I’m sorry to have frustrated you to think that I still believe it even after having been corrected. I repeated that those commands will continue to work on the Twitch website. I did not say how they will continue to work. I did say that they will not use “common” APIs.
It requires an update for that functionality to continue working. Without updating, the functionality will be broken.
You are entitled to your opinion, but it’s disingenuous to suggest it is a settled matter. I am of the completely opposite opinion.
(Emphasis added.) Here it seems you are mistaken. Twitch uses different APIs from third-parties. If Twitch decides at some point to stop using its exclusive, undocumented APIs, that will be a big improvement. Tmi recognizing chat commands has not been preventing Twitch from making that change.