I don't have an opinion on the TAS itself, nor its quality, but let me chime in real quick with regards to authorship attribution, because there is some visible discontent brewing between here and Discord, and it needs to be addressed.
Our
attribution policy for modified input is notably lax to avoid situations where every new author would be required to include all past and present collaborators, so the entire body of work on a given game published on our site can be considered a collaborative effort where the content is published
already with intent of further reusal—especially since it becomes inevitable as TASes become progressively more optimized and thus converging to a single optimal set of inputs. The contribution of every author is recorded in the site's history to comply with the CC BY 2.0 site license, which also allows building on others' work without asking for permission—this is something every movie author and editor agree upon when submitting any content to the site.
This moves the attribution of a heavily modified work strictly into the domain of community ethics. The author is encouraged to list every source of input that was directly copied into their work, and is discouraged from taking significant portions of input from other players without properly crediting them—within reasonable bounds, of course. But unless an
overwhelming percentage of input is directly copied from elsewhere without any attribution, this is not something that the site can—nor should!—enforce one way or another, and it certainly shouldn't influence the judgment process or user rights.
And this also isn't something to admonish beginners for, considering they cannot be expected to be fully acquainted with intricacies of our etiquette in their first few months. It's not possible to tell at a glance that what's been done here can be frowned upon, since the borrowed input constitutes only a tiny portion of the TAS's overall runtime.
In my personal opinion, it would have been reasonable and of proper courtesy to mention in the submission message that inputs in 1-1 and 1-2 were taken from HappyLee [for any sensible reasons]. And that's really it.
Carry on!