Koscielny definitely got bullied, but I think he was booked (unjustly) moments before, so it's understandable that he was hesitant in that situation. It has nothing to do with him not being a world class defender/winner.You can see why Koscielny is not a world-class defender.
A winner would have followed Eder here FFS
Correct my polish friend. I know quality when I see it (as seen by my recomendation and scout report of Rojo). He will forever have my gratitude. He's my favourite player (specially after Ronaldo scored against us in the Champions League). Deservedly got his place secured in European football history.