Let’s, say, for arguments’s sake, he was sincerely reacting to an actual unfortunate incident.
Does this give him the right to overturn established halachah? Does this give him the right to even get involved in a serious shailah involving klal Yisroel? Does it give him the right to twist and distort teshuvos to his liking?
His vicious attacks on the Torah, on the halachic process, and on kedushas Yisroel are what are unwarranted, and be needs to be called out on it.
And frankly, someone who so badly oversteps his bounds, and so badly twists his sources, has no credibility anyhow.