The comentaries are just text that's triggered by events, they don't cause events. Afaik, the testing is changing the balance of what text you see - its quite dangerous to give consumers too much of the negative text, I suspect that's why they have been so resistant in giving more Offside text. Those are frustrating enough in real football - I bet there are many unknown offsides that could follow the 'long ball' ' try to turn defence into attack' etc but instead we get a break in the action. They probably filed them under "They can't handle it" and marked them hidden. Now you're just seeing more of this stuff.