Only if Tesla purjured themselves during discovery. That's not the way court cases work. You can ask "Do you guys record the accelerometer data anywhere else but on the MCU?" and they have to answer truthfully.
What you write here mostly amounts to a conspiracy theory. You're taking the idea that Tesla is "hiding something nefarious" as a prior and then taking evidence that their storage was reverse engineered as evidence for that prior.
But that's not how engineering works either.