There was a bug in HBC, yes, but it didn't cause the bricks. Thorough testing should have stopped the priiloader installer ever being released publicly in a state that it would brick due to that brick. And no Team Twiizers code was running at the time of the bricksWell, sorry to say, I have to disagree with "Team Twiizer's stuff has never bricked a (public) Wii"
HBC network connection issue caused a lot of problems for months (years?).
And some people bricked their wii while installing priiloder which crashed because of that issue in hbc.
I know that they don't like to hear it but that's the reality and there's nothing to be ashamed of. Err is human, right?
And of course I say it without detracting from their work, which is absolutely amazing.