I will use DH as an example, in an old ls they were doing DH and i constantly got turned down because "only arc is useful in there" then I got a run on lnc and we did well.

A vid gets released of a win with a setup then people think thats the best way, then 1 month later when they are winning only talk and vids of that initial setup come out and everyone thinks its the only way because no one has shown other groups working.

This is how setups become standard.