Teleports are what they are.

If you can't use them when you are under attack....

And if you shouldn't be using them to get closer to your Alliance core.....

And you can only use them to find a "fresh" patch of ground (of which there aren't many now).....

Then they are pointless.

I don't think it is a "bug" and I'd use it if I had to.

What if you are "away" from the game for a long period of time, an attack is announced (but you don't see it) and your Alliance cannot respond quick enough to send help? You'd use it - I am sure.

You only get a couple of them anyway - so you should be able to use them however you like. If you want to pay heaps of real money to get more - so be it. It means "rich" people will have an advantage - but that's life.