I think nobody says having public code should be a mandatory filter, but if someone has a github history that stretches to when the site went up, covering multiple programming languages and containing contributions to titled open source software I feel like it would be fair to skip over the leet code section of a hiring pipeline.

Personally I feel fine about take home coding challenges, because I would be programming something either way, but I can understand people that consider that they have better things to do with their free time.