Hussar
Legend
/snip
Additionally, it's just mean. So you can live a good life, help your neighbours, do the best to support your community, but you happen to never have found a god to worship, and the response is that you just get tortured until you're dissolved. Why couldn't a good god take you on out for the effort of trying to be a good person? Why does it have to be the Wall of Faithless? Why is that the best option for everyone involved?
Since when is "fairness" been a part of religion? What real world religion is based on "fairness"? There are many, many real world religions where simply living a good life is not good enough so it's not really all that out of place for that to be in a fantasy religion.
Seems pretty straightforward to me. The gods in Forgotten Realms aren't some far away abstract concept that must be taken on faith. They are very present in the setting. Anyone who says to themselves, "Self, I'm going to be a good person. I'm going to be nice to my neighbors. But, I'm going to 100% ignore all these miracles around me and never, ever bend a knee to the beings that created everything around me, even though I can see Their works every single day of my life." is kinda begging for it.
It's a setting where faith MATTERS. And that's fine. Other settings, not so much. Eberron doesn't have the same dogma. Cool. Other settings take it even further. Denying the gods in Scarred Lands brands you a heretic and is a quick journey to the nearest stake where you will be killed and your soul condemned to the Abyss so that you don't promote worship of the Titans. Every setting is different.
I'm just rather baffled why this is so objectionable.