Silicon Valley investors rejected Theranos. Most of them actually consider Tharanos a great victory. Tharanos funding come from lots of large private investors, like family fortunes and so on.
That particular overconfidence in bashing Theranos as an outsider company who would never have been able to fool Real Silicon Valley (tm) is definitely a core part of the narrative that's developing, since nobody believes they'd have disowned her if she had succeeded, and those very same VCs got rugpulled with FTX not that long after making all those confident assertions look very silly in hindsight.