Hi William. Never take Korean immigration for granted. If you are found working in Korea with a BA that does not qualify for an E2 visa, you will be deported. I've some experience with the kind of BA and diploma you have; most of these diplomas are obtained on a 3 years program, instead of a 4 year. There is no graduation ceremonies and the diplomas are very well made and mail to holders right after they finish their BA program (no waiting time for graduation as normal universities do). Also this kind of BA diplomas come with well-presented transcripts and a letter authorizing anyone to contact the university to confirm that the holder indeed finished his/her BA program at that university - these universities are also accreditated by funny associations. Most of these diplomas (when applying to teach in Korea) are BAs in education as the holder can just easy ask university to write that on it.

I do suggest you that you be ready to explain to any Korean consulate (if you are applying from abroad) all details of this diploma. They may reject it or who knows.

Anyway, do not take Koreans authorities for granted. They know what is going on at all times, just ask those many teachers deported or in Korea without a release letter from schools. The way Korean immig. handle teachers now, is by allowing them to drink and "smoke" all they want if they are fullfilling their contracts. If teachers get a bit stray, then they add the teacher's name to a blacklist/wanted list. Many teachers in Korea are in that blacklist without even know, pretending to be smart and cool.

Best to you.

PS nobody's fool.