Well, we can all be conspiracy theorists but no-one, except for the guys on the pit wall and mission control?(Is it called that for Red Bull?) Know the real truth. But for a track like Brazil it’s very likely his engine was getting too hot, and Red Bull was telling Mark to calm it down to prevent what happened too Vettel in Korea, and possibly to prevent a coming together again like Turkey.
Red Bull had everything too gain (In terms of WCC) and a lot too lose that race so it might’ve just been a strategical ploy from Red Bull.