Actually interesting. At least it's not trying to go gather sympathy (Koe no Katachi did that a bit with the pre-serialization) and instead tries to give you a raw input-output relationship with the "impaired" to make it more relatable for the reader.
Too often you get fairy tale settings where there is someone who is a deus ex machina without his/her own problems who salvages the broken human with "love" and "warmth".
In reality, this doesn't happen. However, we are now in a time where we can actually understand another human in the sense that we actually see and hear different things, our conception and reception of "reality" is different from individual to individual, so we are just one step away to actually accepting the others by acknowledging this truth, that reality is relative and individualistic, which in turn can allow us to understand the person right across of you. Sadly, children more often than not are at the same time too stupid and at the same time too smart for their own good, so if the teachers don't tell them in a way that they can understand, they will eventually create outcasts from the children that don't match with or adapt to their view of "reality".
This is why school often becomes a traumatic experience for many children, especially if they can't perceive the "reality" that others want to hear from them to affirm their view of "reality". So instead of asking themselves (which most children cannot do that deeply since they lack the intelligence and brain development to do so efficiently and thoroughly) if their perception is mismatched or if it is even valid, which might cause an identity crisis for some children since they live fueled by that "reality" (e.g. they have friends who agree with them, are praised by their parents and teachers and neighbours for acting according to it, the feel to succeed in something), it's easier for the subconscious or even the conscious to put the blame on the others for being non-conform with the "reality" that has been "the truth" for them.
And this is also why ideologies work so well and are so harmful to society as a whole, because it makes the conscious adult regress to a child-like mental state that tries to separate the "good" from the "bad" and the "truth" from the "lies". It makes people easy to control by creating factions that are supposedly at war with each other (e.g. the so-called "white supremacists"/"racists"/"bigots"/whatever term the other side uses, coined into the enemies of the "diverse"/"colourful"/"tolerant"/whatever term they describe themselves as) as we've seen so many times throughout history already.
Reading this manga should be an appeal to everyone to stop feigning ignorance and instead accept that there is not an "universal truth" founded in an "universal reality", and that the reality of everyone is completely different.
Now this doesn't mean we have to tolerate everything (crimes against property and the human body should never be compromised e.g.) and that we cannot act against something that threatens us, but it means that we cannot enforce ourselves onto others and overwrite their reality without a sound reason (e.g. to prevent self-harm by the means of injury or suicide), and we have to try to reason with the other side regardless of their stance unless there is nothing human left (e.g. child molester, serial rapist, habitual criminal).
[Please note that this doesn't apply in the case where it is impossible to reason with them due to a cultural or foreign genetics barrier, in which case the individual should be repatriated if it is harmful to the society it lived in]