Well, he certainly did not gain an advantage so I have no problem with this....but as FB pointed out, suppose you start 10 meters behind the line and start moving forward in anticipation of the start?1. He didn't activate the sensors by moving, so technically he didn't jump the start. Hence, it would contravene the rules to penalise him.
I still have a problem with this....are we really in the business of penalizing drivers for understeering and oversteering in corners? It happens a lot.4. He went to fast into the corner to defend against Verstappen that's what caused the understeer. Clearly it's a penalty then even though he didn't intend to crash into him.