Tenerife is completely irrelevant to this incident.
TFN: Take off from runway WITHOUT t/o clearance. Fact!
AMS: Take off from taxiway WITH t/o clearance (albeit from runway and not taxiway). Fact!
Now tell me were are the similarities???
As others have said TFN happened 40 years ago and a lot has changed in the mean time. As for KLM pilots having a chip on the shoulder? Have a look through this website, read about different airlines. There is always a couple who claim that their airline is the best because it has the best pilots in the world!!. So give them a break.
Read the BA thread. Quote; " we have the best T's and C's and therefore have the best pilots in the industry". unquote. Just as an example and nothing towards BA but we all do it.