Isn't Calliope's thing a White Hole, though? Even if it /isn't/, it certainly isn't a "black hole," by any means, unless Hussie forgot how to both physics and google search.

I mean, if you google “black hole eating star” most images match what was shown in Act 7. Likewise the singularity Alt Calliope created was most definitely pulling matter in which Black Holes tend to do. White Holes release energy.