They are pretty much saying the same thing. Remove electrical and discharge the system (both methods will do that, I prefer disconnecting ground) I don't know about all the flicking of the headlights, etc. Once power is removed, adaptives are cleared. Simple as that. I have done this many, many times and can say with certainty it works on my 05 hemi.
I think either way will get you what you want, and neither will damage the system, so take your pick.