"Blended Learning is still in the literature, but not discussed seriously"
Wow, really? If you are talking corporate learning, then almost everything is Blended Learning these days. The only thing I can surmise is either:
a. The definition of Blended Learning was a very limited definition of face-to-face instructor-led training with some courseware. Of course, even that is being done a lot.
b. It is so much part of everything that's being done that no one thinks about it as being anything worth discussing. In other words -
Of course we'll use a blended learning approach. Next question.
I can't imagine what they were saying.