Ei! There's no rule about techniques!
Let's always consider other factors that contribute to the efficiency of each method
ie seat height, physical size of the player,pedal size and their configurations,style of music, etc!
IMHO, drummers should try to learn as many different techniques as possible. Kasi may iba't-ibang tempo ng songs na hindi applicable ang particular technique.
Foot technique, like hand technique, will develop over time.These depend on the music that you play, and your personality. We just have to be open-minded to learn as many as we can.
... And always practice, practice, practice!