Want an example of why this rule is stupid? Go allllll the way back to this year's Kansas Chase race.
Start watching from 2:24:00
Brad K's spin through the grass after contact with the #11 rips the front bodywork off and send the car to the garage. Under 2017 rules he'd be immediately done. 78 laps to go, you'd think the 2 crew would mail it in and go home right? No way.
Because so many chase drivers had wrecked the previous week at Charlotte, Brad's wreck dropped him into an immediate tie with Harvick, Hamlin, and Dillon, all 4 right on the cut line. Additionally, previously in the race two backmarkers had parked it but McMurray had gone to the garage for 40 some odd laps and had already come back on track.
That meant it was all up to the #2 team mechanics in a race against time to get the car back on track and finish ahead of McMurray, preserving that precious point to keep them in the chase. The seasoned fan all of one season I was could immediately recognize the gravity of the situation and accordingly I was screaming at the TV. Again, none of this happens under 2017 rules.
Obviously we all know how it ended, he did get out on the track again and would have barely beat the #1 but his car couldn't hold on and it brought out the caution late. I get that point, that NASCAR doesn't want things to affect the race, but this policy goes too far the other way completely killing off these naturally occurring moments that make NASCAR so much fun.