Earlier quoted context omitted.
What about "single HTML file" sets up an expectation about size? I'm genuinely confused. They seem like nearly unrelated concepts—this isn't a project about trying to fit a kanban board into a kilobyte or anything like that.
Why mention it when any project can technically be turned into a single html file? In my opinion there is an expectation of simplicity and as a result a small size with that statement.
Very different than a project that was made to be a single HTML file from the start.