I honestly don't know what people are doing. I have seen 2 or comments over the years about it ruining poles and not working.
I think the video COULD be to blame though.
I have watched my dad do it several times.
strips down pole to just sections
Cleans them all
Sometimes gives them a 2000 grit sand (very rare)
Light dusting of lacquer.
Hour later or when slightly tacky another coat.
Then maybe one more.
Left to dry for 24 hours.
Jobs a good un.
You need a light coat, it says that in the video. If you are putting on a 2/3/4mm of course it will chip and crack!