If the bike is in good mechanical condition, engine works well, nothing much else to do to one. Electrics/electronics on trips - old or new, is a crap shoot. My '85 Limited Edition retirement project works well and I trust it to tour with the Mrs as passenger. Put an '85 Limited on the road in Ontario in 2018 after it sat in a fellows back 40 for 4-5 years. Did as much maintenance as reasonable and rode it around Ontario and across Canada after it was gone over and I had a safety certificate. Too many people allow their vehicles of whatever ilk to determine how they enjoy life and what they can do. People keep Kms/miles low and the age of their vehicles fairly new because the resell value decreases as these increase. If you're going to buy and park in your driveway to achieve this why buy at all.
Just did a 12000 Km trip to Ontario and back in my 2011 KIA Soul with 142K Kms on it, started the trip with 130K Kms. Friends and Sonya's relatives think I was crazy to do this with such an old car, let alone with an older motorcycle.
Enjoyed the video, you're right too much emphasis on the rider, but that's his thing. What's the worst that can happen, it breaks down, towed to a place, fix or not, VISA and fly home? Have read some trip threads where this was done, or another bike was found and the ride was back on. My friend from years ago mentioned that when you tour, do all the maintenance you can think of before hand, then with VISA and roadside package in hand, go forth and enjoy.
Just a thought or two.