Yea, I think this is a bit half-baked. Either the journalist doesn’t know how diabetes is treated with insulin therapy, or it’s meant for people with T2D who are only on a basal dose (unsure how common that is).

There are ‘classic’ insulins like intermediate/regular that act over longer duration and are meant to be taken once a few times a day. Though they’ve generally been phased out with the rapid+long acting approach because that matches insulin needs of the body better.