The Carlos-Max incident highlights how sometimes it is impossible to decide what happened or who is to blame. Kudos to the stewards for just letting things continue.
One could argue that Carlos was passing Max, and he closed the line too much. Crucially, there was just enough space in there for Max to keep one wheel in the track, so it is not clear if closing the line like that would be ilegal in any case.
One could also reasonably argue that Carlos had already passed Max before the corner, in that case we are looking at Max trying to pass Carlos again. He went very deep on the inside, but remained in control, went as far right as possible and looked like he could make the corner in a reasonable fashion. So nothing illegal to be found there either.
Or one could argue that the corner is a longer thing, with approach, apex and exit, to be considered holistically including the braking zone. Then both had a very aggressive line and touched front wheel on front wheel, so who was ahead?
Still gutted for Carlos, though 4th or even a dream might have been there for grabs!
Rivals, not enemies.