In other words, All Louisana Baptist University is a diploma mill? Is Philadelphia college of the bible the same way?
Philadelphia College of Bible is now known as Philadelphia Biblical University. It's been around much longer than Lousiana Baptist University. It was the result of a merger of two institutions in the 1950 that grew out of the Bible college movement of the late 1800s. C.I. Scofield was a founder of one of the original schools. That should tell you something of their theologcal distinctives.
And unlike LBU, it is accredited by several agencies.
Just a note that, to the best of my knowledge, Grant Jeffrey never received any degree from PCB. His bio merely says that he studied there.