dipper, the term "pilot error" should be banished to Room 101 (refer to Google), please stop using it.
Like all accidents and incidents, it is important to understand why the error was made, not just stop at "the pilot got it wrong".
The S92 Cougar accident could have been blamed on the pilots, as they didn't ditch the aircraft when the SOPs clearly stated that was required.
Most of the time a large amount of the root cause lies with OEMs, whether it be bad design, bad manuals, no FCOMs, or might even be more basic than that in that the regulation is weak.
So should the aircraft (OEM) sometimes be blamed for "pilot error" - yes!!