you completely missed the point
champ was showing you an example of how basic gameplay can be effective against advanced opponents. obviously you want to use some moves beyond the elementary ones (diminishing returns >_>; ) but drephen's sheik is the perfect proof of how mastering the basic elements of spacing, proper move choice and good prediction/punishment can and will give you an incredibly solid base that you may not even need to add on to to win.
now drephen, since that combo vid, implemented more of an aerial game (he actually used fairs to combo equally as much as dsmash) but that was about it, really; he didn't use needles as much as many other sheiks did, used a hella lot more grabs and guess what? he was midwest captain for crews at basically every big melee tournament he was at (FC3, FC6, FCD, Pound 2, Pound 3). 0c2 and 0c3 had personal crew battles only I think
tl,dr; learn basics until you're at the "drephen" point and then start adding in techs