As noted in the NBT Crafting v2 docs:

However v2 doesn't implement the modulo operator, which could otherwise be used in place of v3-only features like max() and min().

This may be semi-intentional, as modulo is missing from the operator table lower down in the docs.

However, this would benefit me personally, and seems like a low cost way to improve complex formula support, especially considering v2 is the stable/usable version right now.