That’s one aspect, absolutely.

The other side of that coin though, is if you really want random people tinkering with things directly attached to your body, without having a proper way to test beforehand?

These types of devices need to go through testing before they reach human trials for a reason. While I’m happy to trust security of data and even control of my while home to FOSS communities, I honestly don’t know that I’d trust anonymous individuals online with no skin in the game with my literal body.