The problem with your reasoning here is that it necessarily assumes that the local Bishop (Benedict XVI) is affirmatively choosing to do something that he himself says he should not do. Extraordinary ministers of Holy Communion are not to be used if there are enough ordinary ministers – priests and deacons – to do the job. That’s stated quite clearly in quite a few Church documents. So, if there are enough priests and deacons around (which there obviously are, since that’s who’s distributing Communion), then the presiding priest is not to use extraordinary ministers. For the “real reason” to be what you’re assuming in your post, the presiding priest has to be using ordinary ministers in place of extraordinary ministers, which he can only do in the first place if there aren’t enough ordinary ministers, which there clearly are. The whole idea is anti-tautological (if that’s a word).