Questions that should be considered by investigators:
- Is it plausible that generating seeds directly from Serial Numbers was an oversight?
- Who knew the Serial Number's (MCU UID's)?
- Were the serial numbers patterned (best not speculate on that in public)?
A brilliant creation
I love just about all conspiracy theories, but this one goes too far.
It's plausible that including the serial number as an IV into the PNRG was on purpose. This wouldn't even bad practice.
What is not plausible is the omission of a real entropy source!