BHC gets another opportunity to shine!
Readers may soon notice that although Comet possesses amazing speed, she is sometimes late to, or absent from, important crises... What can I say? Life's tough when you're an intergalactic superhero. Even with her amazing powers, she just can't be in two places at once... even Superman couldn't stop Lois Lane from getting killed (yes, he reversed time and fixed everything, but the fact remains that he can't always be in the right place at the right time...).
So, why did Comet need to move into the Howler Monkey house when she's got a base on the moon? Because the moon-base is only for emergencies, and also because the moon's cold and lonely (duh).
I like that the 'upside' of this is, in M.D.'s eyes, that no-one has to clean off the SK8NKLOWNZ graffiti... even though no-one HAS cleaned it off in all this time...