Welp; It's easy enough to download Deno.

Anyone caught with their panties down after they make it a requirement is responsible for downloading Deno to fix it for themselves.

I'm glad they're doing what they must to keep the project going; and moving this function to a more powerful engine isn't a bad idea...I hope other YT extracting tools will follow in these footsteps as well; leveraging a more powerful tool ain't a bad idea...and it might solve some of their own papercuts.