Who knows what’s going to happen to it in 20-50 years, people never seem to consider those timescales when handing over their data to companies.
This is what gets me too. We live in a culture where hostile takeovers are a thing.
In my country we have universal healthcare but I wouldn't bet my genetic data on that still being around in 50 years' time either. I don't want to end up "uninsurable" in a Gattaca kind of way.