Why? While he may not have meant it in that way, it comes across to me as cocky or condescending.
Didn't come across that way to me - but it may be because I do a lot of professional development. For many, professional development is an "experience." They see something, are taken through something, might have an "oh, that's cool" moment... but that's not development/training. If you can't break it down, understand the multiple components and then put it back together in YOUR way, you're just faking it.
It's like that horrible saying, those who can do, those who can't teach. Such bull. Being great at something is amazing. But, being able to break down the process so that OTHERS can be great. That's extraordinary. I want teachers like Geno. The system tends to push teachers into being dictators - you know nothing, I know everything. I have all the power, you have none. Any questioning and they either get scared, insulted or (as Geno noted) lie. It's okay NOT to know. What you do is prepare yourself as much as you humanly can, and then see how well you can improvise when it doesn't go as planned. That takes confidence, courage and trust.