The “audio jack” is really just another access point to his machine. Allowing bi-directional communication. There have been dozens of hacks accomplished through the 3.5mm jack port at BlackHat in years past.

Since I don’t think they intended to hurt anyone and they didn’t actually hurt anyone I agree that 20 years may be harsh.

No. But you’re effectively putting 2 people in jail for 20 years because someone “could’ve been” hurt. No one was actually harmed (I know, corporations are people too).