After the read, I find myself pleasantly surprised. My initial suspicion that the language would turn out to be Just Another Relex (make a new language by replacing English words with invented words, keeping the grammar and syntax the same) was clearly a waste of a suspicion. Furthermore I can see this approach being really useful to writers/game makers/etc who want to include a smattering of conlang in their work - for instance a non-relex naming language for placenames, overheard snatches of conversations, etc - to add an extra layer of spice to it.
So, I don't feel threatened by this novel use of AI. It could prove to be a really useful tool to help with some often laborious tasks (creating test translations to try out an idea, etc). I just hope the AI had as much fun inventing its language as I've had inventing mine!