Each person has to weigh the risks against the positives for their self.
For me, it's easy. I'd rather take the chance to lose one young than to have never known them at all.
I really don't spend any time at all worrying about it. I used to. And then, to put it simply, I got a grip.

I no longer spend time worrying, nor do I spend any time or energy hoping, wishing, or dreaming that my dogs will be any healthier than their breed predisposes them to be. I know my girls' pedigrees, I know their parents' health testing info, and I also know not to hold my breath no matter what I may
think I know. All the happy shiny health testing in the world doesn't mean squat because if they're a Doberman, they're at risk. Period. Any safety net someone thinks they have in health testing or pedigree research can be as flimsy as wet paper one day when your dog still drops dead in spite of all the warm fuzzy research you did.
But I also don't assume they will drop dead. Doberman health is a crapshoot. At this point, I'm entirely neutral on it. I have no assumptions one way or another. I'll be ecstatic if some day we have some definitive answers so we begin breeding out some diseases but until then...I still love the dogs. And I'm still going to have them in my life.
Their lives and deaths will be whatever they will be and apart from what I can control - like keeping them safe and out of harm's way and trying to be conscientious about their nutrition and general health...there's nothing I can do to prevent any hereditary disease. So I don't worry about it.
If it's something you'll obsess over...yeah, I'd probably rethink owning this breed because that fear may overtake being able to enjoy life with your dog.