Regardless of any debate about the meaning of the word "sampler," I must admit that when I first explored Kontakt I was shocked that you couldn't sample audio with it, and this led me to question what I'd heard everyone saying about it being the industry standard sampler.
Maybe I'm just being old fashioned. In the early 90's I had an 8-bit sampling cartridge for my Amiga - we wouldn't call them samplers because it was really just an ADC with audio inputs. I would trigger the resulting samples with OctaMED, a tracker. We would reserve the word "sampler" for units like the S3000 which both sampled and played. Likewise I would have never called OctaMED a "sampler" because all it did was trigger and manipulate the samples.
I wonder what's stopped NI from introducing recording functionality into Kontakt. It doesn't seem like it would be too much of an undertaking, Geist does it without much fanfare.