Haha, I love this idea. Unfortunately with more context on the religion, it’s obvious why none of them would come to this conclusion. So there’s actually 3 tiers of Heaven (and then Hell which is called “outer darkness”). Only by knowing “the truth” and completing all your ordinances on Earth, can you get into the top tier (the “Celestial kingdom”). Without those things, you can only get into the second tier by being a good person, no higher. Everyone else gets tier 3 - which is said to be such a paradise that if we knew how great it was we’d opt out of life early to get there. But also in the lower levels we’re supposed to have eternal regret for not being worthy of better.
So Mormons believe that by spreading the truth they’re enabling a person to achieve a higher tier afterlife. Outer Darkness isn’t really a concern because “why would anyone ever deny the one true religion and one way to have true happiness on Earth, after they’ve received it.” When I was taught these lessons, I was even told that sons of perdition were exceptionally rare because almost no one ever leaves the church. Never expected to become one myself! The internet has not been good for the Mormon church and in recent years they’ve been bleeding members and trying to rebrand.
I guess you could say that I came to your conclusion, but in reality I just don’t believe the religion is true and see parts of it as harmful so not really… I’ll probably joke around with my siblings with your idea though