More permissive license for easing functions snippets?

[darzu]

This site is fantastic, and I'd love to use the easing function TS snippets in an MIT licensed project. Is there any chance that the function snippets (not the whole website) could be MIT, Apache, CC, or public domain?

It's not hard to find permissively licensed implementations for all of these, but it'd be nice to just copy straight from this site.