I am not sure how I feel about this yet, but will watch it play out.
I do want to note that Bob Pockrass did note that in 2015 this would have only come into effect 5 times (not sure if it was 5 races or 5 times total). So really, this won't be a huge think.
The truck series seems to either have a debris caution or a wreck before it hits 20 min in my honest opinion. This would be a bigger shock if they tried it at Xfinity or Cup, where long runs happen and should be a part of racing. Fuel mileage is still strategy..