NTs may be better than many with Autism at reading social cues, but there are other factors involved too. NTs can be just as neglectful, abusive, self centered, judgemental, righteous, moody, manipulative, impatient, and with biases, or preferring to put the group or system before any one individual. They can assume things, and have no desire to go beyond what they were only trained to do. They can react and do improper things under stress or want to shift the blame.
Look at all the NT parents and even professionals who miss the abuses that could be occuring against their own children when their children are at day care, camp, school, in church setting, on sports teams, having medical checkups, in the film and advertising industry, and so forth. Lots of those cases the parent must have seen their child's behavioral changes but just assumed things, or just did not care or lacked proper communication or motivation to intervene or figure things out.That is what is wrong with society.
We cannot follow our children around everywhere, I agree, but when we have children we must be vigilant, and we must hold authorities in power responsible for wrongs they do, as you bet they will never admit wrongs. Not all things they do are wrong, but there are cases where a desire for the truth and lack of assumptions and categorizing could have made a huge positive difference for these kids. Whereas some children's behaviors will need some disciplinary action by the school, there must be other cases where the school did very improper things, and where certain factors should have been considered and where we should not have lumped all cases together for negative judgement and punishment. Lots of factors can be involved. Schools are partial parties, and hide bullying and their wrongs often. Of course they rather blame students. The truth is often somewhere in the middle.