Keep in mind there was an issue initially with the changes in suspension geometry caused the ESP to kick in when it shouldn't have. 99 times out of 100, realigning the steering system fixed that problem, but on some kits I heard it wasn't always something that could be fixed.
I think this is last-resort advice for people who couldn't fix it and didn't want to change out their aftermarket kit. And it's good info for the folks who don't like technology making the decisions for them, so they can fully disable it. But for most, the normal way of turning in on/off when needed while four-wheeling is sufficient IMO.
If you didn't know - these instructions are to PERMANENTLY turn it off. In 4Hi and 2WD, when you push the button once, traction control (TCS) goes off, but the stability control (ESP) stays on. Good for snow in that you can force wheel-spin to get traction, but it will still come on with under or oversteer. When in 4Hi, hold the button for 5 seconds to turn it completely off, or shift into 4Lo and it will automatically turn off TCS and ESP fully. If you go over 40 MPH, it switches back to TCS-only off.
- Bill (formerly VetteDriver)