not what the OP said.
TPB is very much high profile but you can't access it in some countries because it is banned at the ISP level (with a reasonably public legal process).
Yes, exactly this. TPB's IP addresses are blocked at ISP level, and the response has been to set up many reflector sites (e.g. malaysiabay.org), and mirrors.
A complicated interactive site is of course much harder to mirror than a bunch of magnet links.
A complicated interactive site is of course much harder to mirror than a bunch of magnet links.