I'm sorry, but I'm not sure what ghost mode has to do with this. The op specifically states that you should wait for ghost mode to expire before continuing, they also state that you should pull over to one side. Both of these ensure that you rejoining the server should be as smooth as possible.
What you're talking about is people loading in and then just driving through people, before they load in. I agree that this isn't correct; however, it's only against the rules if done blatantly and with abuse in mind. Merely not realising that a) you're in ghost mode (some newer players may not twig this) and b) the people around you haven't loaded in yet (some newer players may not check the mini-map), all these are honest mistakes, but can be avoided by always parking up to one side before disconnecting from a server, under any situation.
If someone purposely makes a save whilst in a traffic jam, and then loads that save, knowing full well they're in a traffic jam, and drives forward, then there's grounds for that behaviour to fall under 2.5. This is relatively hard to prove, though.
All this aside, none of what's suggested in this article should be construed as a rule violation, as it's actually the complete opposite, it helps avoid more people loading saves and not realising that once their ghost mode runs out, if they're inside of another truck, there may be an issue. Using ghost mode incorrectly = no, I don't support this. Doing exactly what this article outlines = yes, i do support this, as it can only be beneficial.