I did post earlier in this Thread, my thought, and it is a thought, is that a Non Wired Back Oil Filter should not be extended more than 10K. If it says this Oil Filter type can go longer than 10K then it has to be under the right conditions. What are the right conditions, I do not know, but maybe highway driving.
To the OP, a slight media failure will not kill an engine, but it is something we do not want to see. I saw a media failure with a non wire backed oil filter at 5500 miles, and all I use now are Wire Backed Oil Filters.