I think it says more about their actual beliefs in God. As a Christ follower, I believe everyone has their own path to take. If drugs in moderation is one of them, go for it. Hell, it’s theorized Moses was tripping on shrooms when talking to God.

Those who fear being exposed to “other” things will take them away from God (beyond addiction, that’s a whole other thing), then they never believed in the first. They just use it as a shield to justify their horrible actions.