They are speaking about seizing and tracing funds, how is this not an attack?
It's an attack on The Pirate Bay! They've been trying to shut it down for years, and was even successful once!
Now they are complaining that since The Pirate Bay is accepting donations in Bitcoin, they can't track their bank account in order to shut them down.
This is like a bank saying, "because the robbers were wearing masks, our security cameras couldn't identify who they were". In no way is the RIAA saying they are going after Bitcoin!