All that the context shows is that the school’s failure has a different cause than originally thought: Initially, it might have seemed that the school was guilty of rampant political correctness. With context, it seems that, instead, they just took the easy way out and suspended the kid for the easily enforced “offence” of wearing the wrong T-shirt, rather than the real offence of being a religious bully.

If they had suspended the kid after he refused to stop the unwelcome overt proselytizing, you wouldn’t have heard a peep of complaint from CFI. But they didn’t do that, and instead trampled on his right to free speech. They were wrong, and CFI was still right to have said so.