The moving rule is not at the turn in phase. It's under braking.
The note said: "Article 27.5 of the Sporting Regulations states that '...no car may be driven...in a manner which could be potentially dangerous to other drivers...', furthermore, Article 27.8 prohibits any manoeuvre '...liable to hinder other drivers, such as...any abnormal change of direction'.
"With this in mind, and with the exception of any move permitted by Article 27.6, any change of direction under braking which results in another driver having to take evasive action will be considered abnormal and hence potentially dangerous to other drivers. Any such move will be reported to the stewards."
You're also only allowed one defensive move
20.4 Any driver defending his position on a straight, and before any braking area, may use the full width of the track during his first move, provided no significant portion of the car attempting to pass is alongside his. Whilst defending in this way the driver may not leave the track without justifiable reason
20.3 More than one change of direction to defend a position is not permitted.
Max was pushing it, Lando had a case.