It's at best half true.
With bittorrent you have trackers, clients and indexes.
Clients are of course the software running on users domestic machines, and the overwhelming bulk of traffic involved in bittorrent is between clients, there is no point in concealing this traffic, and each client has an easy time finding out who the other clients are.
Next come the Trackers, these keep track of the clients in the swarm and give new clients an initial list of peers to communicate with. The amount of traffic isn't as high as peer-to-peer, so a tracker could be put at the end of a VPN or TOR-like system, but all the traffic would go through the bunker. Alternatively these machines could be simply hooked up in data centres, with IP addresses dished out from TPB, either way puts them out of the bunker, but either with a sizeable bandwidth problem, or with no geographical concealment.
Then comes the index, this is either in the bunker or on the end of VPN/TOR, and all the bandwidth goes through the bunker.
From the technobabble it sounds like the trackers and indexes are hooked up through a simple f***ing IP tunnel, and when TPB's current ISP gets upset, they'll change ISPs, change DNS, and then wait for everything else to catch up.
It's crappily engineered, overhyped, and far from invincible. And it smacks heavily of people who've watched to much Star Trek blurting out words in the hope that it'll sound impressive.
What's truly pathetic is that given the extreme intellect we're led to believe is required to understand freetard thinking, nobody has made any real refinements to bittorrent software or architecture to help TPB, people have however worked out how to spoof trackers to get higher performance ratios.