No matter how you slice it, this is a bad precedent. This guy may have done some inappropriate things; that has yet to be determined/proven. One is "presumed" innocent until proven guilty in this country.
What's bad is criminal prosecution of a pilot involved in an accident ( I know other countries have a different slant on this...that's not what we're talking about ). This guy may have done bad stuff, but it's a very short jump for some government pencil monkey to paint all pilots in all accidents as criminally liable without regard to circumstances. The public loves a public hanging.
If they hang this guy, the camel's head is in the tent and this job will finally be not worth having.