"What is not a question is that a criminal investigation is now open."
Good. These companies deserve each and every stone thrown at them, and much more.
Yes, I can agree with you, did not think of that and it seems to be a perfectly valid motive.
Still, I wonder: who would fall in the "highly susceptible" category? Wouldn't these people need to be tested prior to actually knowing they should be tested? (what would push someone to be tested for susceptibility of birthing malformed children before being tested?)
Okay. Let's assume your top priority is to test for genetic health issues, I will also assume that you either plan on reducing the risk of future complications or you are factoring this information into account when deciding to get children (otherwise, why would you want this information?).
In the first case (reducing risk factors), chances that you will at least check positive for one thing are almost 1 (certain) and you don't need a test to know that. In almost all cases, limiting the risk will involve a) eating well b) stopping alcohol / smoking c) regular physical activity d) taking some Aspirin for the remainder of your life. You don't need the test results to start doing this. Either you sincerely want to live longer and shouldn't wait for genetic screening to take your matters into your own hands, or you think that test results will suddenly turn you into a monk. News flash: won't happen.
In the second case (whether or not to procreate): any decision you make on the hypothesis that your children will inherit it and that science will not have solved it in the next 50 years will very likely be a bad reason to not have children (there are many good reasons to not have children, though, but having a rare genetic conditions is not a good reason).
The only people who should not have kids are bad parents and people who don't want kids. Guess what? These two groups that probably have the highest amount of kids on Earth.
I use incognito mode by default in my browsers and Wikipedia has become unusable with the constant begging. I stopped donating on a yearly basis when I realized their intrusive begging scheme had turned into a hobby.