When I was on the market for a new phone, it had become a bit of a hobby of mine to ask Samsung dealers worldwide about the privacy of my data when using their cloud AI. It's incredible how uninformed literally every sales representative was when it came to this topic.
And it's not like the exploding batteries where they have an incentive to do anything about it.
After they’ve trained the model on your (and others) data, this is noble of them.