...=/ are you actually reading your reasoning behind trying to justify the removal of HGWT?
How does the removal of HGWT automatically encourage people to go out and do the things you mention like: Archeology, Farming for rare mounts, Camping NPC rare spawns, dailies and etc?
It doesn't, you can't mass summon yourself to a dig site, you can't mass summon yourself to a questing hub, you can't mass summon yourself to an entrance of a dungeon.
The people who are out there doing the things you mention, are out there doing it because they enjoy doing it, not because they have HGWT...
Your reasoning implies that the people who are "lazy" and "idling" in city hubs, aren't out doing those mentioned above, because they are waiting for someone to "mass summon" them to the location of that activity...
Which brings me back to my main point, removing HGWT isn't going to encourage any world activity, that's an illusion, people aren't going to leave the city hub more than they have too, regardless of having HGWT, the only thing that comes from removing the perk is that, each players will now have to make their own way to their destination, through other means, but let's be honest, the majority of us will just go back to the days before HGWT and just AFK alt-tab while riding a taxi.