I agree. You find it with those who have our german based tongue, and who are not familiarized with latin pronunciation. It just laziness, or, believe it or not, a type of embarrassment. When people learn a new language, I think they can have the tendency to feel a little embarrassed to be so bold as to pronounce the foreign language properly. They know 'how' to do it, but I think they feel resistance to actually pronounce correctly, and I think that's why.

Whenever I serve, I would always have people tell me after mass they appreciated my pronunciation of latin. I tell them I attribute it to my being fluent in Spanish. It doesn't make my latin perfect, but it roles off the tongue and sounds a lot better.