Recently watching some top gear laps, then playing in game and the tire walls stick out so badly, at least I hope we can remove them in free play. Same for any track really, watching a POV or trackside lap videos and then driving in game the tire walls really stick out and take away from immersion and general look of the track.
If they enforce track limits in the next game (fairly sure they will), the tracks shouldn’t need the extra tire walls.
The FRR beta hoppers in FM7 do cut back on the tire walls. So if the FRR system is standard on all Multiplayer Lobbies then maybe they will cut back on the tire walls across the entire game.