You are reading too much into it. The message was never "learn to code on your iPad". The message was always "make cool prototypes and ideas quickly"

Over time I have added features that I personally use into Codea. Sometimes I like to use Codea at my desk next to my desktop computer, so I added a way to do that with Air Code. I still prefer coding on the iPad directly, but I use both depending on location.

Codea will always be about making your ideas come to life. It attempts to reduce the friction in creating things.