For anyone interested, I got the concept from 1:04 in this solo:
So that lick is different to the one in my video, but what I did was to take one of the "devices" I found among all those notes and run with it. So what I took out is just a small fraction of an improvised lick, then I extended that into a discernible concept that can be practiced and used in various ways, like I talk about in the video. I find that identifying the "device" is often more valuable than just copying the licks if the goal is to make it useful for improvisation.
Whether or not it's in a Guthrie style... I personally would say it's close enough to label it as such, but people are free to disagree about that, of course. I could of course have just called it "fusion legato lick" or something, but considering the concept comes directly out of a solo by Guthrie and this legato style with lots of chromatics is something I associate with Guthrie, I thought it was appropriate. Naturally there will be some overlap with other players playing similar things, but I don't feel like that makes it invalid.
But as I said, feel free to disagree.