It is not up to me to decide to just release such data. Because it encodes other people's data too. If I were to release my financial records because "it's my data", i'd be exposing a lot of people, organisations and companies who I had interaction with.
With DNA I'm not so sure.
I am aware that "an ecommerce platform" is something else than "your personal finance", but the principle is the same: X shouldn't release other people's financial transactions just because those were done with X.
https://www.npr.org/sections/health-shots/2018/08/07/6360262...
The point is, at the very least it's a grey area, so to dismiss the counter points so airily as you have done on such a serious subject indicates - at best - a lack of reflection and respect for the rights of others.