Oh don’t get me wrong, that’s pretty much what it’s like in the states. Plenty of people will tell you that it doesn’t have to be god just a higher power, it’s spiritual not religious, take what you need and leave the rest, etc., etc.
However all the mental gymnastics in the world doesn’t change the fact that the word “god appears 4 times in the steps themselves, it even says “as we understand HIM”, and it was originally based on the foundations of a Christian group, The Oxford Group. It is at it’s core a quai-religious program. Of course some people don’t use it that way, but I feel that I would be living a lie if I tried to use the steps pretending they’re not based on prayer to a deity as an atheist.
And as far as their “moderation is impossible” stance, that’s clearly a personal thing. I’ve seen horrible alcoholics who were able to moderate. For myself personally though, I’ve decided it’s not likely and not worth continuing to try. I lost too much in the past. Now I’m trying to gain, not lose. But yeah, it can be detrimental to people for sure. Also, the emphasis on clean/sober time and that one drink/drug throws it all away can be very detrimental as well.