KrotchPUNT! Available now from Windrose Armoury.
So just some points via the OP:
I'm in the blue pants in the vid, the next Prince of Cynagua is my opponent.
Crotch strikes are allowed in the SCA and are kills, they aren't encouraged, but they are legal kills (thankfully).
Not thrusting is a highly regional thing. Out here in the West Kingdom it's very much allowed. The reason for it's rise over the past 25 years is due to the change from the old style q-tips to the low profile ones, especially with the recent change in the rules allowing tips to be 3/4" x width of Singlehanded sword with 3/8" progressive give. In other Kingdoms they do not allow thrusts to the side of the helm as kills (dunno why), and so thrusts are are not as used.
In the vid I was aiming for his belly, chin, or hips but the sword/gauntlet/vambrace locked up (I'm working to correct that) so I ended up almost hitting his balls more than once. I've noticed that, because the crotch is frowned upon as a target, folks rarely protect themselves for 6-8 in around the crotch. I get kills lots hitting those places (see below vid).
Belemrys: What I meant by bad technique was "If you don't know how to block a common shot, then you can get hit by said common shot". I've won more than one Tourney fight that way.