In fact I got interested in Heamorraging Fetus when I read Chris's review of the 12" in Night Science, so I'm going to take the tip and try to find out more.
I suppose my point is that with HWN as an actual genre there's only so far it can go (of course) and that if anyone's going to acquaint themselves with it, there's what I regard a real limit to such a stark, minimal style. The Total Slitting Of Throats is, in itself, an example only, in that any other HWN album could be an example. I mentioned it since it's a collaboration of the major suspects in the genre. Same with Vomir; apparently Masonna wanted to be "the Ramones of Noise", so Vomir can be the Ramones of HWN, and from what I've heard, he's succeeding. Once you've heard such stark, minimal sound it's really only a question of the tiniest degree.
I've had a personal issue with this whole thing for a while now. There's been a lot of Noise, over the years, that revels in being huge, minimal/maximal blocks of total sound. But now we've got this bullshit term that's narrowed the whole thing down even finer. I also have a problem with it's proliferation; it's a sign of laziness and lack of imagination to me.