Dad was out of line, but fortunately the good folks of Twitter were ready to put him in check. Hopefully dad was able to hear the critical feedback with an open heart.
Someone on AskReddit asked for people to share their experiences with being on the receiving end of wrongful, premature judgments. Judgments are absolutely not always grounded in what is. It's remarkable how many of us can give ourselves over to what thoughts come into our minds, about what defines someone else.