Agree. Although legal Latin has a much longer history than the "new pronunciation" which is purely theoretical. And ecclesiastical Latin varies with the country - English and German (with which I am familiar) are quite different from the "Italianate" pronunciation on which the Catholic Church has standardized. You can listen to any good English choir singing Tallis to confirm this.
A.P. Herbert had a great riff in Uncommon Law about legal Latin vs. modern classical pronunciation. You can get a bit of it here:
The New Pronunciation