Two points:

1) "Opt-out" is still a user-hostile design choice. If they wanted to make sure people were ACTUALLY consenting to this data sharing, they'd make it opt-in.

2) While .org and .com are legally distinct entities, it's also true that Matt Mullenweg is still on the board at the WordPress Foundation and as such has some influence over its decisions. How much influence, I'm not sure. But I am quite leery of his decision making process after the last few days.