Germany probably has particular problems with prosecuting such cases because the are different authorities with different juristictions. The LBA regulates commercial air transport and commercial licensing, the counties regulate PPL and flight instruction. As the flight was by a PPL holder and the company didnīt have an AOC, it isnīt their area of juristiction, nicht wahr?
On the other hand the county authorities authorise the strangest things sometimes: such as pleasure flying events by private pilots. For example. PPL with <100 TT, 30 hours on-type doing such an event. Barking mad.