I don't know how old he is, but if I assume he is my age or older and strongly IFB, there were not too many IFB institutions offering seminary degrees past M.A. at that time. Accreditation of any kind was looked down upon as worse than the degree itself--government interference. The SBC was looked upon as compromising institution. Why would one even think of going there? I am just giving you the mindset of that time. He is an Independent Fundamentalist Baptist. For that reason alone he would not go to an SBC seminary. They don't have the right philosophy. Accreditation doesn't mean much in his circles.
And therein lies a huge problem with fundamentalism. Their teachers may be ever so smart and well educated but they will not have much credibility outside their circle of fundamentalists. They can't get the attention of others because they are not credentialed. I realize there are a lot of credentialed fools out there but having a degree from an accredited seminary means that at the very least you have taken certain classes and have knowledge in certain disciplines.
In most places you can't be a doctor or lawyer unless you have graduated from an accredited medical school or law school and passed an examination. We still have bad doctors and lawyers but the process eliminates a lot of would practitioners who are incompetent. We have freedom of religion, so of course I wouldn't advocate laws that require a degree from an accredited seminary before going into the ministry or before starting yet another unaccredited bible college. There is, however, some merit to using this concept in practice. Our church, a very old SBC church, requires that the pastor have at least one post baccalaureate degree from an accredited seminary. This requirement has served us well over the years.
As for not wanting governmental interference, I don't know of any government sponsored accrediting agencies. They are all independent, operating under their own self imposed standards.
Fundamentalist evangelists have a hard sell at the outset because they expect their converts to lead a life apart from the world. Not a bad idea but still a hard sell. Why shoot yourself in the foot by using people on the front line whose knowledge and credibility is suspect? I must say fundamentalists have come a long way with Liberty University and a few other lesser known fully accredited schools, but they still have a long way to go.