This is literally what the meatball flag is for. Letting any driver stay on the race track while their brakes literally don’t work is a safety hazard for everyone. For Lewis, he could have easily ended up in the wall and had a nasty accident. Since there were multiple lapped cars between him and Fernando, he could have easily crashed into any of them. This feels like the FIA is now going the other way after they went through a period of giving KMag a meatball flag literally every time he would have contact with another car. I think F1 has dodged a bullet today, but we might not be so lucky next time. TLDR: The FIA should have shown Lewis the meatball flag and made him come into the pits to repair his car because a car with failing brakes is dangerous to the driver and the other competitors.