That's just CBT. Nothing new. And that's fine for people with mild SAD. But for people with severe SAD, that doesn't work.
i'm sceptical that "severe SAD" as you say really exists - i mean supposed SAD for which CBT doesn't really work. imo those cases of social anxiety are more likely an indicator of personality traits or personality disorder, or something else that functions quite differently from SAD. i don't think i have SAD anymore, but i certainly have difficulties with social anxiety.
i mean my friend has been described as agoraphobic, which is quite an instrumental description because she doesn't like to go out of her home alone and she's mostly housebound. but she's not afraid of the outdoors, no amount of going outdoors with her and training her to have rational thoughts about the outdoors will diminish her fear. she has PTSD, general anxiety, fear of abandonment, etc. i guess what i mean is that, sure, its instrumental to call it severe SAD (or in this case agoraphobia, because that's how it presents), but its not really descriptive of the condition, its descriptive of the symptoms. its a "ball park" kind of description for people who don't know better.
i just feel like SAD is a fairly well defined condition. i had it. i got rid of it mostly. its not the beast some people make it out to be. but there are other beasts. like its not a catch-all phrase for everyone that experiences difficulty with social anxiety.
i still react in a silly way when someone says they have found the cure
, like its that simple. like life is so simple? right? but really i think i have to admit that SAD is a fairly simple thing.
as far as diagnosis goes, i guess if someone is struggling with social anxiety, they are very likely to be diagnosed with SAD, which is fine, they need some diagnosis so they can access health care. its instrumental. but its not descriptive of the underlying problems.
feel free to disagree. i'm just working out what words i want to use for what things, and what sits well with my own experience.
but maybe i'm confused and defining SAD by the treatment, and it really is a blanket term for other things... idk. i'm just trying to say its a different thing because its qualitatively different, not just the same thing to a greater degree as implied by "mild", "severe", etc