This whole industry really needs a lesson on consent.
If I collect information on how often a coin-op Street Fighter II game is played in an arcade, while collecting no personal information, consent is not needed.
If I want to play a game and provide my feedback, the default should be that that doesn't happen unless I explicitly say it should.
Opt-out means that, by default, you're collecting metrics from my plays, until I find the means to opt-out.