1. we don't know that we'll never know something specific. We only know that there will always be something we're not going to know
2. "know" is relative anyway
3. I can think of reasons why religious believers would want a civil marriage only, whether they later have casual "blessings" or not. E.g what degree of baggage they want / don't want to buy into. Even people of religion still shouldn't package deal. Cafeteria is the only way to go. If you're seeking "leadership" out of control freakery, stick to the rules, otherwise just pick and choose.

I chose to be married (outside) by a female judge, at her fathers house.

That articles is todays nomination for this years worst piece of dumbassery in journalism award.

I stopped with "agnosticism is a belief" whatever.

I would not get married in a church or synagogue. To do so would be dishonest.

Most churches and synagogues require at least one member of the couple to be a member of the congregation (some will make an exception if one or more of your parents are members.)

So, I would either be marrying a religious person (ugh), joining a church myself (bleh), going to my family's church (hell no), or being a dirty liar. None of those options appeal to me.

My wife was a believer, but divorced. So we married in a civil ritual arranged through the town hall, and then went to the chapel to have a church blessing service. ( It amazes me the nit picking that religions will go to. They won't perform a marriage, but will do a blessing service, which is exactly the same ritual.) But I was happy to go along with it, since it made my wife happy, and it meant nothing to me. Since all religion is meaningless, there is no reason why I should not go through any ritual, pray, or be blessed, it has no meaning.

The only possible harm done is that by adding a little to the size of the congregation, and thereby I may add a little to religions prestige, but one grump in the corner, who puts little or no money on the plate, will make little difference that way, but attending may be very important to my loved ones, so you go with it.