While I agree they could have phrased that better. They were drawing a simple comparison to how easy slayer really is. Before you can say that I don't understand I have a child who has both of those conditions and no I didn't find it offensive, just poorly worded.
When the day becomes the night and the sky becomes the sea, when the clock strikes heavy and there’s no time for tea; and in our darkest hour, before my final rhyme, she will come back home to Wonderland and turn back the hands of time.