They could be full of it, but tbh this article may be misrepresenting the whole situation. Like, genetic test don’t analyze your whole genome, they look for specific markers. You can’t give a test an input completely outside the parameters and complain that the test maker didn’t anticipate this.

This is like… Uploading a photo of a car to a plant id app and acting shocked when it doesn’t stop and congratulate you on your clever ruse. It’s just going to give you a plant.