NHRA started the runoff after NASCAR started there playoffs. The 1st year Tim Wilkerson was way ahead in the points until they were reset for the playoffs and Tim didn't have a good playoff. Had the point reset not happened Tim would have won the championship.
So let's forget about trying to follow NASCAR or any other sports organization.
Let's have the best driver/car for the whole year be the champion. Real simple.
I assume you are referring to the first year "after" NASCAR started their playoffs and not the first year NHRA started the Countdown. The first year of the Countdown, the Champions under the old point system would have been Hot Rod Fuller, Robt. Hight and Greg Anderson.
Announcing the Countdown was also a last minute program change and teams didn't have time to change the way they raced at different events like they do today. Things like not going for the gusto at a lesser market or super hot racetrack. Or testing when you have a significant advantage over the two people behind you in points and a big gap in points from catching the person in front of you. With the season long points system this would be a much bigger gamble. Today a team can finish 5th after Indy and only be 3 rounds behind the leader as the Countdown starts.
In the past, the top teams had the incentive to run away with it before the season was over if they could. But then NHRA's last few races only had that race's Wally and race money as a prize for winning the race. That hurt NHRA's bottom line as they didn't have much to talk about to draw more TV viewers to somewhat meaningless races.
Now some teams don't seem to care as much about the hot summer races or races at weak markets for their sponsors. It makes financial sense to not destroy parts when there's going to be a reset and they know they will "catch up" when the points reset.
I think it was the 2011 season that Hot Rod Fuller told me Rob Flynn had their best car stuffed in the attic of the trailer for the summer races as they knew the points would be reset and why take a chance of screwing it up on a hot track. After all that's what happened to them the first year of the Countdown. The plan didn't work, but it had merit.
I think the first year of the Countdown was 2007 and I think that would have been Hight and Anderson's first Championship. They have both won multiple Championships anyway. But can you imagine what an NHRA Championship would have meant to Hot Rod Fuller's future in NHRA Drag Racing.