False, especially if you get into a guild, which won't be hard as a level 70. Get some cheap HoS gear through a naked Pug, or with a guild, and there you go. You're now well on your way to bigger and better things. Especially if you ARE a CC player.
And, as I said at the beginning of that post, you might as well just start over. If you have to leave your gear behind, well all the time put into gearing goes to waste, same with the money (whether in game gold or dia). That and now in this new group you need to regear (not having ANY money to start off with mind you), restat, and retier.
To make it so server transfers aren't game breaking, you would have to have a lot of rules, and it would pretty much end up the same as why most end gamers probably won't roll a dwarf for more than just to mess around with. It is far too expensive to gear up a new level 70. So unless your current gear is compatible with the new classes, you probably won't be rolling a dwarf. And since you would have no gear or money to get gear, you probably wouldn't want to change servers if you are against just starting a new char on a new server anyways.