Sorry for the repeat performance, but this photo usually proves my point!
This was a Giant supported rider and I understand bike availability was an issue at the time too, so that may have limited bike choice to a degree. I know the bike lasted the day, but I'm not sure about the long term. However I have full faith that a Trance with a decent build kit can put up with a fair bit of "abuse" if the rider is smooth and skilled enough. It's become quite a popular trail bike for heavier riders as a result.
As mentioned this bike is more then capable with three foot drops, but you would have to be a little careful with anything bigger in my opinion. In Root Rats case there is obviously something wrong in terms of either maintenance or perhaps pushing the bike a little too hard? I can't say I've heard of bolts cracking on these things before?!
Cheers, Dave.