Seriously? He teaches in England?
I understand it if he was in an Islamic school.
Nor should any error of judgment, however it can be construed, result in accusations of him being anti-Muslim, with a now very real threat of danger to life thanks to others rushing to judgment.
According to some reports today, the same school showed Hebdo two years ago, with another teacher allowing pupils to take their leave if they would be offended.
If that is the case, it is seemingly not an error in judgment, more an oversight on the part of a teacher who probably now needs to move for the safety of his family.
The school is now the face of it, which in itself, makes it a long standing target for those for shit for brains.