A scholar has made some statements about their religion which doesn’t fit into their narrative, so they want to stamp out the dissenting voice to maintain control over the narrative.
Usually that sort of thing is accomplished by writing and publishing an academic counter narrative, though not everyone has the intellectual capacity to write a compelling critique. Book burning, riots, death threats and other “barbarian” impulses allow the disadvantaged equal say in our culture. A ban on this sort of activity would be most discriminatory.