CARB survey letter

Ramcharger360 said
Just got a quick reply from Mr. Jiao.
The results of the survey will be used in research purpose only to update the model, and will not affect your vehicle registration/smog status at all.

Regards,

Wan

and I have some ocean front property in Arizona for sale.
Why do they need to "update" their model, if it will not affect the smog status.