That method uses more equipment such as a Pi. It just automates the usb part.
I don't get why some people hate the fact hate they might have to get up and go to their ps4 to plug and unplug a usb stick to JB the PS4. It literally takes a minute for the entire process.
I don't mind it. I had to do it today and it showed some errors, but eventually unlocked.
It's really nice to own CFW'd (ish) PS4s, there's so much more they can do than on an OFW. OFW users wish they could play the PS2 games that CFW users have access to.
Well, they can use PS Now for PS2 games, right? Even still, it's not the same experience.