[norswap]

I think the point is to make a decoy OS that you can boot into if forced to unlock your laptop. Running on Tor would be highly suspicious.

The point of running this on Tails is to prevent the use of forensic tools inside the decoy OS to unearth what's underneath.

[joosters]

If using Tor is suspicious, then having Tails on your computer is also going to be suspicious. I'm certain that no border agent will be swayed by your "but I don't actually use this Tor I have installed" arguments.

[norswap]

I assumed that tails is normally invisible and must be logged into using some secret handshake at boot time. Otherwise it's pretty silly, even if the partition is wholly encrypted.