Oliver was decent when he first became a ref, then he realised that you don't get the top gigs unless you do what the PL wants and he changed the way he refs dramatically.
Oliver has given the equal least number of pens this season, near the bottom of the list for yellows and near the bottom for reds. In this particular scenario where we are more likely to be the ones fouling / pressing I don't mind that too much, but it could go both ways.
My biggest fear about this game is that we get an early red card. Theoretically Oliver should make that less likely, although of 2 red cards doled out this season one was against Romero.