Hmm, I think Max maybe did use more than one move.
Exiting the previous corner, Max covered off the inside line staying off the racing line, but straying slowly toward the racing line.
Heading towards. the next corner, Kimi jinks right towards the racing line and max follows with a sharp small direction change. Its not big, but it's a defensive move.
Into the braking zone, Kimi jinks left to go inside and max sharply turn to block while braking, not on the racing line. That sharp turn in is not part of any racing line. It was quite the obvious blocking move.
You can't use the "second move was to take the racing line" reasoning in this case, because the racing line is on the complete other side of the track. In fact, Max completely departed from the racing line to block the inside, A blatant second defensive move not even the slightest bit to do with "taking back the racing line".
I literally only just looked at the incident and it's quite clear cut. Max moved onto the racing line to defend, and off it during braking, to defend. Two defences, the second having nothing to do with taking an optimal racing line which is a requirement for it to be legal.
Im sure there is a rule against sudden or sharp movements in the regs too although I have no idea where.
Edit: Here we go
Sudden changes of direction just before or within the braking zone are considered extremely dangerous, as they can leave the attacking driver nowhere to go. This rule is not stated explicitly in the FIA sporting regulations, but is considered an “abnormal change of direction” under sporting regulation 20.5
I'd call suddenly going diagonal and braking in front of another car in a braking zone way off the normal racing line to be pretty abnormal.