I find the personal dig at the start of your comment unnecessary, but I appreciate that you're engaging me in a discussion about the design aspects.
I'll grant that if you're optimizing for error correction, it's a perfectly suitable solution. I'd even go so far as to say that's exactly what Apple was going for when designing this. Even so, I really think this is a case where showing that this is an option would be valuable. When I see a split keyboard, I assume that I need to press the keys where they're displayed and frequently have to slow down my typing to figure out which side of the keyboard the key is on. It's nice to know I don't have to do that.
That's too literal. This solution is the best possible setup for all users. If you're typing slowly on the keyboard and taking it literally you just learn the new setup. If you're used to another device and expect those keys to be in different places it performs as that users expects. Adding an option just places something on the screen that should really be irrelevant for the vast majority of users.
Also, I wouldn't take that initial comment as a dig, even if it was intended as one. I think it says something about the the discovery of this feature that you couldn't immediately realize the intention. The fact that it's not obvious to everyone what this is for gives even more reason for it to be a hidden feature.
I'll grant that if you're optimizing for error correction, it's a perfectly suitable solution. I'd even go so far as to say that's exactly what Apple was going for when designing this. Even so, I really think this is a case where showing that this is an option would be valuable. When I see a split keyboard, I assume that I need to press the keys where they're displayed and frequently have to slow down my typing to figure out which side of the keyboard the key is on. It's nice to know I don't have to do that.