Something often forgotten about Yamchas death here is that it ISN'T a joke. Its seen as one now, but Yamcha was considered just as strong as the others, and he WINS against a Saibaman at first. But he lets his guard down, and pays for it. Its a grim reminder that no one is safe.
I'm rewatching the original broadcast of DBZ for the first time in a VERY long time and I thought I'd express some of my thoughts as I watch! Stay Tuned!