Absolutely. Guaranteed immunity to EMP. And in a pinch, when all of the other tanks are dead, you can still move. That is a huge plus.
And your basic engine hasn’t changed much in the years. Basic engine tech hasn’t changed at all. Still spark, explosion or glow plug, thermal expansion both via timing. An engine still goes bang.
So, fundamental systems that determine survivability must be able to continue to run and operate. This can be done through redundancy or default and drop to a simple state.
According to post 86, that can’t be done.