I watched the run a few days ago.
Please note that the run was made with the U ROM, as opposed to the J ROM as linked before. However, as to my knowledge, there aren't any visibly significant differences as far as I can tell regarding the two ROMs. This run just happens to collect a lot more fruit, and so delay the bonus screens. While this may be a basis for speed/entertainment tradeoff (see Sonic the Hedgehog), the author has not even acknowledged so.
Please also note that the
SMS Wonder Boy publication also obsoleted the linked Adventure Island run, but not without controversy.
It is the responsibility of the author to make a post or edit the submission text to clearly explain the choices (such as version and goals) that he used for his TAS. Since this author has failed to communicate this (or communicate in almost any way for that matter), it is his own loss.