Two things can happen if a Dark Souls newbie watches this video. One, they are gullible and go 'wow that truly is One Weird Trick to becoming good at Dark Souls' — meaning they're likely to dedicate the rest of the playthrough to trying to find a coconut.
Or two, they catch on that all of the stuff about fruits is complete nonsense. Hopefully it's not the first, because Matt Lees is obviously not being serious here — and it's hilarious.
Dark Souls: The Main Reason New Players Give Up [Matt Lees]