If my memory serves me correct Hamilton was one of the drivers who lobbied against it's introduction.
Max Verstappen, Lewis Hamilton crash out of Italian GP; Hamilton praises halo for saving him
A simmering battle in Formula One erupted in spectacular fashion as championship leader Max Verstappen and defending champion Lewis Hamilton crashed out of the Italian Grand Prix, with Hamilton crediting the halo for saving his life.As both Hamilton and Verstappen fought for position midway through the race, their cars came together in a move that could have seriously injured Hamilton.Mercedes team principal Toto Wolff went as far as describing it as "a tactical foul" by Verstappen."The stewards will decide who is to blame," Wolff said. "In football you would call it a tactical foul. He knew that if Lewis stays ahead, then that is the race win."In the end, the stewards did decide, judging that Verstappen "was predominantly to blame for the collision".They gave the Red Bull driver a three-place grid drop for the start of the next race, the Russian GP on September 26."I'm proud of the stewards," Hamilton said after learning of their decision."I need some time to really reflect on it but I think it definitely sets a precedent and I think it's important for us, moving forwards, for the safety of the drivers, that there are strict rules set in place.