[satiric]

I was interested, so I went on a wikipedia tangent. It was brought up in the courts in Reynolds v. United States in 1878, when the Mormons were saying that anti-bigamy laws were unconstitutional (they did not convince the court, and it continues to be illegal now).

More recently, it's also been used to say that the bans on peyote use were illegal, because of the folks that use peyote in religious ceremonies. Because of that it's now legal in all 50 states if using it in a traditional Native American ceremony.

So yeah, it might not be as commonly talked about, but it's still come up in the courts, and there are plenty of folks who care.