Aleix just tried to switch off Marquezs bike during the practise start don't know if it was sour grapes from yesterday or plating around.
This is something that I reckon should be punishable or penalised as whilst it may seem like a bit of harmless fun, it does impact the rider who suffered and may stop their ability to complete that practice start (which may be part of their race routine).
If the bike cannot be restarted it also needs to then be collected and bought back which can have an impact on some of the readings (tyre temp) that may affect the rider as well.
.... I am a grinch