Many consumers are swayed by the packaging and may want the M2 Air due to the new body and visual appearance. The M1 looks dated IMO, and $200 isn't too bad to get newer tech and a sexy new look.Any casual user in the MacBook Air market should consider the M1 version first since it's $200 cheaper and wicked powerful compared to past (intel) Air configurations. But if you're someone who is concerned about performance then the M1 Pro or Max is still available to you rather than a standard M2. And nowadays with Cloud storage, a large SSD may not even be necessary for most casual users.
If the M2 "looked" exactly like the M1, I agree, very little reason to upgrade for a "regular" (ie. non-forum reader) person. IMO.