Hi Blake,
Ha, understood on the punctuation and spelling... making an effort is more than some do, so thank you for that. It doesn't have to be perfect, obviously, but can help a lot.
Now, onto the rest. Your son is very enthusiastic, and enjoys TKD a lot. That's fantastic, and absolutely should be supported. You have nothing but support for that here. But any school, when dealing with 6 year olds, is daycare (realistically). And honestly, if it wasn't (if it was more "serious" training), he'd probably hate it. For now, your main job is to encourage and support his enthusiasm... but that's really about it. It's more important that he's enjoying it than anything else. To be blunt, I don't know of any parent who doesn't think their child is different to all the others... what you've shown me is a particular set of values that he has (most likely taken from yourself and his mother, so you are to be commended on that), which are great, and definitely show why he's approaching his TKD the way he is. Again, this is great, and I think his enthusiasm is great... but that's what it is.
Don't worry about any of the concerns you've had, unless your son is losing interest, in which case, talk to him about it, and talk to his instructor. You mentioned he's getting frustrated... okay, ask the instructor how to make it more interesting for him... maybe set up a reward system as he completes the repetitions he needs to do. But remember that that's designed to encourage and promote his enthusiasm... if he genuinely loses interest (can, and often does happen, particularly with children), fine. Let it go, and move onto something else.
Oh, but for the record, if you don't know his forms (videos are far from enough), you really can't necessarily correct them. You can perhaps remember sequences and help with some larger aspects, but there will be huge amounts of information in the forms that you simply don't know. If you do a search for video learning, you'll see why you can't say you know his forms based off of videos. Besides, it's up to him to know them, not you.