Another case of taking advantage of a low-noise medium. If it works, others will follow and we'll need to get spam filters for SMS.
Overall I wouldn't be worried about SMS. The economics don't make sense either with the front end cost or the long term penalties, and soon everyone will be on a third party messaging platform anyways.
Kellogs imagines that we have a relationship. So does Subaru.
More of that, I don't need.