That's the correct way to put the pole up as advised by Tucker poles. I would put a Tucker pole up like that if I was only going to 35ft as it's very easy and quicker. Any higher than that and I would extend the rest using the wall/windows to extend the pole. It's easier and quicker to put any 6ft+ telescopic pole up like that safely up to 40ft, than extending it up the wall unless it's a modular pole.
Would like to add, the longer the pole to extend using that method of raising a pole... the more it will bend, (even carbon fibre poles bend, though not as not much). The pole in that video has to be about 60ft I would say judging by the bend shown. I've uesd a Tucker pole at 60ft and it's extremely hard work, harder than using an Ionics ergolite at that height for two reasons. 1. because the pole bends so much and 2. because it's the heaviest at that height.