There is no problem in my book on using net carbs as your measure - you may have to slide the scale on what the right number is for you down the road.

If you are still on induction and doing Atkins 20 - Bars on not listed here - don't eat them:

https://www.atkins.com/how-it-works.../low-carb-foods

If you are not on this plan or induction - eat them and count carbs pay attention and see what happens. Maybe you will get along with them, maybe you will not.

Only you can find out!