The hit on Finley did not look intentional, just one of the unfortunate things that happen in football. Although both hits were similar, McMillan's looked possibly intentional to me. Hard to argue this one in his favor. With that said I don't think either of these should have resulted in fines.
The league seems over the top this season with fines, and while some of them are well justified - sometimes they should take a step back and realize that football is full contact and accidental injuries WILL happen.