Apple is not being accused of being criminal by anyone who understands antitrust law. The proof is the comparison to Microsoft, an entity that held a clear monopoly where Apple does not.
You can nearly count the number of substantial monopoly cases in US history on one hand.
However, take a look over the anti-trust cases just since 1994 (almost none of which have to do with monopolies):
The DOJ is concerned with suppression of competition on an industry level. Amazon/Apple arguably did so. Microsoft certainly did so. Two platforms in fierce competition, neither in a truly dominant market position, using their own Maps application, is not what the DOJ is going to worry about.