IMO, those partictular bands were chosen to be taken out of context, exploited and 'suicided'. They unleashed it on teen age kids via pop radio and MTV. People were less than interested in that sound until it was fed to them from 'official' sources.

They're pretty much all gone now. The rebel ones at least.

Caveat, I love grunge. But I got to see it before the LA money started moving in.