Bob,
words matter. Their meanings matter. We Catholics have a saying: Lex Orandi, lex credendi, lex vivendi - As we pray, we believe. As we believe, we live. When he changes the liturgy, he changes what it means. He may have meant no harm, but was likely warned to cease before having faculties removed, which means that he chose to continue, out of disobedience. This is a serious matter, and there has been much liturgical abuse in the last 40 years. It needs to stop, and this is actually a good thing. One hopes that this time apart will give the priest in question time to reflect, and to amend his ways. It is shame when a priest runs this particular risk to the souls in his care, not to mention the peril it places him in. Pray for him. Seriously. I will.
This is one of the reasons why I prefer the Traditional Latin Mass.