Wife wants to homeschool but I'm unsure

We have a 3yo daughter and 2yo son, both with ASD. My wife and I agree that we don't want to do public school for either child. I was thinking of going the private school route, but my wife is dead set on she wants to homeschool. I love my wife dearly and wouldn't trade her for the world, but that being said, she didn't finish high school and I just don't think that her being our kids "teacher" will give them the best outcome educationally. Any advice on how to approach the situation without being the asshole or seeming like I'm calling her uneducated?