Right. As if the audience will actually catch the difference?! ;-)
Conductors. They're madmen (or women)!
Well, these changes are significant, and assuming our diction is clear, and the audience is paying attention, ( I know they're informed & used to the standard Latin), it'll begin to wonder.... what gives?? Then...they may focus on that, and miss the music!
But, I'm just a lowly chorister, what do I know?!!