In simpler terms what the rules state is that if the cars are completely side by side they must give eachother 1 car witdth of space. If they are not side by side there is a little bit more of a leeway to the car in front in taking the racing line, tough some space should be given.
Max wasn't completely side by side with Lewis but Lewis did move while breaking into the first corner pushing max offline. In my eyes it was a racing incident.
@Jessicka Max might still have some reputation for being reckless but he's far from his younger days. Most of the critics he had was from dangerous defending by moving really late to defend.
By the way they are both great drivers but i'm not a fan of either.