This is the problem, what you wrote is a gross oversimplification, which I'm not bagging on you for, I'm prone to it juat like any other human, it's what we do. But there was no unified influence on the Seattle bands, you can't just say they were influenced by <insert thing>. It didn't work that way. Take the big three, Soundgarden, Nirvana and Pearl Jam. These were three vastly different bands. And I mean way different. As hateful as it sounds, Creed and Pearl Jam had waaay more in common than PJ and Nirvana or Soundgarden. Pearl Jam was not a punk derived band whatsoever. Jeff Ament has as much hardcore cred as any dude alive, enough to carry the whole band, but that wasn't their jive. They were a 70s rock band through and through, go listen to Mother Love Bone, they were straight glam at that point. Mike McCready was a reformed metal head. The drummers don't even count because they changed them like underwear. Contrast that with Nirvana, which was very much post hardcore. All the dudes in the band were punk rockers. Soundgarden was off in left field, they had the most unique thing going.
If you want to draw a line from Pearl Jam to Creed, go back to Aerosmith and Led Zeppelin.
As an aside, I have a lot of good books I could recommend on the Seattle scene going way back. It's vastly more complicated than most of the popular recollection, you really have to reach back to the Sonics then get into the U Men, and then Green River and that era to see how it evolved. It was a lot less homogeneous than is perceived now.
This is also why Rick Beato is a raging moronic douche who has no fucking idea what he is talking about