It's still selling way lower than Step You/Is this love. At the fifth week, Step you still managed too sell 13000 at week 5 and sold 9000 at week 6 (got this from an old thread here). and step you got sales of 313500 at week 5 already

But at least at the rate fairyland is going, it can still beat moments and Carols (though it will be harder to beat carols sales). Inspire sales is just too big a number for fairyland to catch up to.
Sadly, fairyland sales may drop even more since not only is it getting old, Heaven is already coming up

Hopefully heaven will get really really really high sales