Don't use CW for testing your group of people if you can't put up something that meets the quality standards. As soon as something is published it becomes CW material and hence is subjected to CW quality standards.

Why can't you just send them existing katas? What are you trying to teach them anyway?

1 - I do not understand.
2 - You did not have to publish this kata. If you have the link, you can find a Draft kata ( looking at your Authored kata also works, so if you know the author's username, you don't even need the link ).
3 - Please teach your "group of new JS learnings" ( ?!? ) the correct way of writing kata. That would include example tests, random tests, and not writing kata that shadow a native method, but wrong.
4 - You don't want to know how many points this cost you. Yes, bad ratings and issues actually cost you points.