I can see both sides of the "should they have waited?" debate.
VLAB have been putting pressure on during stages like this, precisely to try and force Pogi into a mistake. IMO, while it wasn't fully anyone's faul, Pogi has some culpability when it comes to staying on his bike and I was disappointed to see them ease off.
But as has been said, the risk reward of gaining 20 seconds but enraging Pogi probably meant that discretion was the better form of valour. It would have been interesting if Pogi crashed out of a smaller group of JV, Remco and (let's say) Vauquelin, and also if it had been Onley or Johannesen himself that had crashed, whether the group would have waited.