It's ridiculous and childish. He even made a snipe earlier on in the season midway through the collapse citing that people were wrong for saying Arsenal always collapse in title races, the statistical evidences over the past 12 years proves otherwise! He's arguing against stats that are correct!
The players are just as responsible as Wenger but his laissez faire approach doesn't help, I have no idea what he was saying to the team midway through the collapse but it seemed to me as if he "hoped" we would play our way back into form. He repeatedly picked the same team even though they were stinking up the place!