Hi Jeff !
I appreciate that your knowledge of Draw is much greater than mine, and I do not know the requirements of the printing industry these days, although I retired 14 yrs ago after 50+yrs in the trade.
What was asked for was a way to reduce the file size for a business card, and this I gave.
I have just printed out both files which I mentioned, Corel and Primo PDFs, and they are identical; so you tell me what is happening.