Hundreds of intellectuals and artists are concerned about its implications for freedom of expression, while police, lawyers, and prosecutors consider it too imprecise.
As I see, it describes that freedom of religion shall be protected. It says nothing about harming what other religions may or may not consider to be sacred.
And if this was a general law against burning things in public you might have a point but it is not and the issue would be exactly the same if they had used some other means to deface and destroy it.