Sure but what constitutes “sugarcoating” and “can’t handle” is rather subjective. Also as a person who has had various autistic and OCD persons in my family circle, “getting over” whatever is being avoided can be the work of many years, much experimentation with therapy and medication and exercise and boundaries and a bunch of other stuff. In the meantime, avoidance is a legit coping mechanism and even a stopgap superpower, arguably.
But with that caveat, people DO exist who have been coddled their entire lives and can’t see past what effects them personally, and are unable to have empathy for the plight of others. Like the lady in (IIRC) Missouri the other day who said “we all voted for Trump here but we didn’t vote for him to deport [our close friend who we all like, only people we don’t know and assume are criminals]”. Those people could benefit from a few more ice cold buckets of water to awaken them to a broader view of the world. They are not for the most part unable, they are victims of learned helplessness and general bigotry. THOSE folks I agree at least in principle, don’t spare them. Although if you dunk on them they mostly dig in their heels and become even more reactionary and recalcitrant because they will fight to the death to protect their carefully cultivated personal self image as virtuous and kind.
So I don’t know what the answer is. Probably not a one size fits all crusade of plain talk – more case by case, I’d guess.