Earlier quoted context omitted.
I agree. Trying noninvasive but inaccurate tests before accurate but invasive tests is just par for the course. 23andMe is certainly noninvasive, and as far as I can tell more accurate than most such preliminary tests.
The accuracy isn't the problem. It's that the accuracy is unknown. And evidently 23adMe haven't been attempting to prove it to the FDA. As far as I'm concerned at that stage you might as well take homeopathy. > and as far as I can tell more accurate than most such preliminary tests. Oh thats good? I'm sure that anecdotal well set the FDA at ease.
How does this follow? No test is equivalent to ignorane. Using the test as a non-invasive prelim screen may be imperfect, but its hard to say the "null hypothesis" is equivalent. That would require that no information be present, which seems unlikely (if unproven). Or did you mean something else?