@mathew if you're going to comment, please make sure you read the public notice as it has a list of topics of which your comment is expected to explicitly state which one it addresses for it to be entered into the public record. it's possible that by default they enter it under 8, " Please identify any other pertinent issues not referenced above that the Copyright Office should consider in these consultations." but maybe make it easier on the poor public servant(s) who will be categorizing your comments.
public notice:
https://www.govinfo.gov/content/pkg/FR-2021-12-22/pdf/2021-27705.pdf