The 189 also takes a lot of getting used to in the mountains! These guys had not too long before finished on the S92 which handles the hills very well. The 189 is a completely different animal. Add gentle/moderate turbulence and it’s not unusual to see ~20 pitch changes.
is it really fit for purpose in that case?
Surely AW could come up with a software fix for that instability. I had heard that phase 4 software reduced that pitch instability a bit.