#1 Occurred by a 1 vote margin. Do you realize how close that was?
#2 Occurred because (H. R. 3893) wasn't law.
The purpose of (H. R. 3893) is to confine errors to the States in which they occur and let the citizens of those states rectify the problem in accordance with their respective legislative, and judicial remedies.
The error of Dale vs. BSA would be confined to N.J.
Lawrence v. Texas would have never made it to SCOTUS and nothing would have changed in those states with sodomy laws.