If you use 90%+ isopropyl alcohol it's fine. Many puffers use that. I use Bacardi 151 Rum. Some use Everclear (190 proof, almost pure alcohol).
High proof/percent alcohol is hugely important.
Lower proof alcohol does not evaporate as quickly and, IMO, does not work as efficiently (most whiskies, vodka, etc are only 80 proof or 40% alcohol).
I'd stay away from 70% or so "Rubbing" alcohol because it usually has some additives and those smells can be absorbed by your pipe. Besides, the 90%+ isopropyl alcohol is like $2-$3 -- ask you pharmacist if you don't see it on the shelf.
Also, I hope you read those links as the info they provide might not be included in the video. If you're planning on doing more pipes, I'd bookmark 'em, especially the first article.
No sure if any of 'em cover this, but if you want to protect the logo on a stem, cover it with petroleum jelly (such as Vasoline) prior to soaking.