Well, I think I couldn't distinguish AI music from the good (or bad) old human-made "elevator music", but maybe I'm mistaken and it would stand out to me when I hear it...
listen carefully and if it rings (as in being little distorted, or too noisy) it is most probably AI. and it is nearly-impossible to obscure it, unless you replay the whole score using classic approach. i would imagine how irritating is this music to everyone a child indeed, as children have higher thresh of what they hear.
That's probably to be expected, before that they used covers of popular songs, likely produced by a company that offers much lower rates than e.g. the original artists.