Textual criticism is a discipline about which many believers know very little. The average regular churchgoer can probably tell you that the Bible was written primarily in Greek and Hebrew, not English (and the average reasonably intelligent person might simply assume it), but beyond that basic piece of information, how our Bibles came to us is not all that widely understood.
Given the quality of history courses in the average high school since 1970, fewer still know that when we speak of “the originals”, they are not sitting in some airless, climate-controlled museum display case. Would they be shocked to discover such manuscripts no longer exist and have not existed for centuries? Probably not, with a few seconds consideration.