Kevin
It's been suggested on a few occasions before now. When you say "like a real race" I assume you're talking about F1 but this game doesn't attempt to precisely mimic the current F1 rules and regulations.
TBH I don't really mind whether or not this gets introduced but the main reason not to is the fact that the last thing we need is another incentive for everyone to hold 100% boost back for the final lap.
So what? These are their problems, they decide for themselves whether to save the batteries on the last lap and take one single point, independent of the place, whether it is correct to distribute it during the race, and take more points