It is because LFS doesn't do oval drafting correctly. Come on you Nascar fans, pipe up, I know you are out there. In oval racing in the draft in LFS, the 2nd car seems to go faster because there is less wind resistance. This isn't how it is in the draft IRL. IRL, the first car breaks the wind and the low pressure behind pulls the 2nd car. As the 2nd car pulls close to the lead car, it pushes the lead car into going faster, thus both cars run fast. This is why in Nascar you see the leaders waving their hands to tell everyone to line up. You also see a lead pack of 5-6-7 cars break away from the 2 wide racing behind them quite easily. IRL, it would be very difficult for the 2nd car to pull out of the draft and just blast past into the lead. It would need cars behind it pushing to get past. You see it all the time in Nascar. Two lines of cars bumper to bumper and someone pulls out to pass. No one goes with them and they just fall backwards at an incredible rate. This is why they can move from leading, to last place at Daytona and Talladega within 1 lap. Unless drafting with open wheelers are completely different to tin tops .
I LOVE oval racing. I also LOVE the road racing in LFS. Thus I still have Nascar Racing 2003 installed. If LFS wasn't so easy to jump online with, I probably would race NR2003 more often. I've never raced it online though. LFS was my first experience with online and it is just too easy to get there. I would love LFS to have proper speedway drafting as well as the proper oval setup options like weight bias and tire stagger. Until we have these, oval racing stinks in LFS.
The draft and blast by, then draft and blast by..... is so ridiculous. I don't know how anyone can enjoy that. The skill in oval racing is picking the car(s) you want to hook up with and utilizing them to your advantage in PUSHING you to the front, not whipping around them to the front.
You should be able to move over and block a move without a major incident. You should also be able to break the draft to escape a near future passing attempt. You do either of this in LFS and you will have either a catastrophic crash as the car behind unrealistically blasts past or loose everyone and finish half a lap down.