@GoodGrief - PIC stands for pilot in command
so that "should" be the one, who decides where to put the bird down and if the slope is accectable.
You canīt blame the marshaller, if you bend the bird - but as seen at the policehelicoptercrash in Berlin, the one with the witheout, where the pilot also wanted to land, where the marshaller was - instead of choosing a landingspot further away, pilots are making mistakes....
Back to the Krebsberg - actually there was also a little slope at the refuellingpoints - and I recall a Robbiepilot who needed several trys to get his bird down there - which were clearly within sloping limits...
There are even pilots around, who have problems putting a bird down at no slope at all