No, DDG most certainly did not hit anything on the head.
The majority of his/her (sorry) examples involve health and safety:
seatbelts, hygiene, nutrition, waryiness of strangers. Your spouse truly cannot distinguish between the desirability of avoiding of death through poisoning, and the acceptance of a particular religion? Bad analogy, as amusing as you and your spouse may find it.
The others are a little closer to religion/philosophy, but I would still distinguish education - the desire that your child expand his/her horizons and lifestyle options, and good manners, generally considered beneficial to living in society.
Belief in a deity, not to mention a particular deity, is not necessary to peaceful coexistence in society. Nor is it proven beneficial, as is the value of nutrition. (One possible exception, I recall studies suggesting health benefits associated with active participation in organized religion. IIRC, this was attributed to the support and comfort one gets from support and affirmation, not the particular beliefs involved. Similar benefits may be observed in rotarians, etc.)
In the context of this discussion, I consider religions to be more similar to personal preferences and biases. People differ in the manner and to the extent they teach their kids about such things as ecology, civil liberties, and honesty.
I do not believe you can make universal moral judgment of my decision whether I teach my kid there is a god, a particular manifestation of God, or that the supernatural is bunk. You may be able to express such judgments about such “personal preferences” are racial tolerance/intolerance. But is it “moral” for a parent to teach his kid that the Republican party is mistaken? Or that the DH rule is an abomination?
It is very hard to make morality judgments about religions/philosophies other than your own. Do the Taliban consider themselves immoral for teaching their beliefs to their children? How about ultra-orthodox jews? Or catholics who prohibit women from the priesthood and denouce gays? How about wiccans, pagans, or atheists? Or Amish who deny their kids nintendo?
I would probably make an exception for the group that forbids invasive medical treatiment, or a group that engages in ritualistic behavior (exorcisms, etc) thhat sound like child abuse. I have no hesitation condemning such things. But I believe those are the exception rather than the rule.
I think it is natural for parents to wish that, in some respects, their kids take after them. It is also natural for parents to try to share their acquired “knowledge” with their kids. That doesn’t mean they will love their children any less should they end up thinking differently when they grow up.
So is it moral for parents to teach their religion to their kids? Of course. Because just about whatever they teach, some day that kid will grow up and be thrust into the great big world, and will be able to make up their mind for themself.