Interesting question and it has been around long before the transgender children fad. Many old fogies like myself almost brag that when they were kids they would never tell their mom that they had gotten pops in school, because that would only mean another spanking at home.
The very first time I heard a kid tell me that if I sent a bad grade home, he would "get my ass beat," I was concerned, but also wondered how truthful the kid was. I asked my principal about it and she gave a long off-topic answer followed by "sometimes you have to use your own judgement." My judgement was to grade the kid like every other student. I heard nothing further from that particular student, but I heard that plea dozens, if not hundreds of times.
In my career, many a CPS report has been made by teachers who are required by law to report suspected child abuse. How many of those kids were actually being beaten? Who can say?
Anyway, I suppose anytime a school shares negative information with a parent, there is a non-zero chance that it will lead to a beating. Is the answer to withold information, or maybe even provide false information as the article suggests? Should the school prepare "cover" report cards with all A's for students at risk of beatings while keeping that student's real submarine grades on file? On parent night, should all the teachers agree on a cover story of how well the child is doing academically and behaviorally?
If it is a gay or transgender child who is afraid for his parent to find out, should female* students be encouraged to serve as beards on prom night, or game night to play the role of the smitten girlfriend, so dad thinks his son is the proverbial chip off the old block?
I'm guessing that you will say the last part is absurd. I agree. But I think the whole idea of teachers deceiving and defying parents is absurd. Where do you draw the line, is the question?
*If the school did recruit such female beards, must transgirls be allowed to play that role?