Unless they have dropped the flying saucer bit and some of their other eccentricities, they are still a cult of Islam.
Some NOI groups have rephrased their more controversial bits and dropped the thing about their founder (whom they proclaimed as a prophet) while others have not. They’re definitely not in the mainstream, but most of them have come a lot closer over the years. But often members who want to do serious jihad go off to study with an older branch of Islam in the motherland (as this Bledsoe creep had done in Yemen).