Okay, I've personally transplanted cannabis plants that were a year and a half old. Why? Cause they were still in the vegetative state. It's a bit harder when it's in flowering mode:)
You were at HEMP inc in person? Did you take pics of the hemp plants? Did you ask Bruce all the hard questions? Did you see the mill and extractor? Oh please, tell us of your in person HEMP tour, will you? Do you have a link?