....Dude did you read what you just wrote?
Everything in that post supports what I just said. Cavalry is a GANK class. Unless you somehow think attacking someone who is unware or from the flank directly engaging them.
Cav is support, period. The phrase is "Call in the cavalry" for a reason.
my meaning of gank is "get a lot of people together and attack the other smaller number of people". Infantry is more like this, while cav is about surprise and ambushes (solo mostly).
if infantry was more about line fighting rather than who has the most damage dealing weapons, then i can say that infantry is not a gank class. However, this is not the case. Infantry kills so fast that by the time cav enters the game, they get roflstompped by the greater number of victorious infantry.