PLease stop comparing GT to real life. There is NO comparison. No matter how perfect GT is, it'll never be real life. If you want to experience real life, go drive for 24 hours straight in real life and experience the whole sensation of it in full 100% realism. GT is a game first, and a game should be fun. If that means that it's lenient enough after you've spent 23 hours on a single race for whatever reason (I would never do an endurance race, NEVER) it'll let you win, then I could go for that.
To me, it's simply incomprehensible that people who aren't paid an incredible sum of money to drive for even 8 hours in pure exhaustion would do so voluntarily for 24 hours and DEMAND that they be punished for it as if they were being paid millions of dollars. It's like "Hey mom! Look! I'm a weal wacecar driva now!" "No hon, you're not, put the controller down and go spend some time with your friends." Next thing you know, certain people who demand "random mechanical failures" will demand that a 24 hour race be unpausable just like real life with realistic peeing and taking a crap while driving. *sigh
We must play GT for different reasons, I just want to drive all kinds of cars on all kinds of tracks with awesome physics and graphics. I play GT to learn to become a better everyday driver; I have no illusions that if I am punished in the game enough, that I'll be hired by ferrari to drive for their next F1 season.