We've stopped smoking and started vaping; thus reducing, limiting, or eliminating further harm. What about all of the crap we choked down for five, ten, twenty or more years? That doesn't reverse itself overnight. As I understand it, it can take years for cancers to present themselves, and that's probably true with other conditions or diseases as well. We are still a higher risk factor than those who never smoked.
I don't like paying higher premiums. If I had any say in it, I'd ask my employer to use an insurance company that doesn't charge us like they do regular tobacco users. That, however, is likely to be a thing of the past (or never was...). In the future, I can see higher premiums for smokers, regardless of the insurance company. I can see those premiums lingering for years after one quits. At best, I hope for a reduced increased premium for using smoking alternatives or NRTs.