Is driving a manual a good way to prevent your car from being hacked?

Some of you may be aware of the case of Michael Hastings. Some people allege that this investigative journalist had his car hacked into and crashed into a tree, killing him (wiki link: https://en.wikipedia.org/wiki/Michael_Hastings_(journalist)#Death).

Basically all new cars these days have throttle by-wire, steering by-wire, over-air software updates and other electronic BS that make them susceptible to hacking and potentially remote control.

If you drive a manual transmission car with a mechanical clutch and brake, even if your throttle is by-wire, is this a good way to protect yourself from getting your car hacked? Might sound a little paranoid but just curious.