Like many actions by DOJ it's showboating. I doubt failure to inform is a crime for which an individual can be held culpable. Unless he signed onto forms submitted to the FAA that said everything was OK after the MCAS incidents, it's hard to see how they can make this stick. It also strikes me as another case of make the little guy pay for the big guys' crimes.
I won't hold my breath waiting for the execs who institutionalized and profited from a system of lies, sub-par quality and deliberate safety violations to get indicted.