Should Lorenzo Musetti have received harsher penalty for kicking ball at line judge at French Open?

After the incident, the chair umpire immediately announced that Musetti had received a warning for unsportsmanlike conduct. However, should he have received a harsher penalty? 

A player kicking or smacking a ball and hitting someone can warrant a default, whether the contact is intentional or not.

Novak Djokovic, a 24-time Grand Slam singles champion, was disqualified from the 2020 U.S. Open when he accidentally struck a line judge in the throat with a ball in his match against Pablo Carreno Busta.

"Players shall not violently, dangerously or with anger, hit, kick or throw a tennis ball on the grounds of the tournament site except in the reasonable pursuit of a point during the match (including warm-up)," wrote The Athletic's James Hansen, citing the rulebook. "For purposes of this rule, abuse of balls is defined as intentionally or recklessly hitting a ball out of the enclosure of a court, hitting a ball dangerously or recklessly within the court or hitting a ball with disregard of the consequences."  

Tiafoe quickly asked about a default, but the chair umpire stuck to their call. Musetti would lose the second set 4-6 but cruised for the rest of the match. 

He won the third set 7-5 and the second set 6-2, punching his ticket to the semifinal at Roland-Garros. The No. 8 seed will face No. 12 seed Tommy Paul or No. 2 seed Carlos Alcaraz on Friday. 

Musetti better keep his temper under control for the rest of the tournament. He's lucky that the chair umpire in Tuesday's match seemed lenient.