This is not simply about the DDoS, these guys are being made an example of.
Every police investigation and judicial action related to Wikileaks, from Bradly Manning "Hannibal Lecter"-like punitive detention to Assange's no charge house arrest to this recent (and amazingly fast) wave of DDOS arrests, everything linked to Wikileaks has been given "special priority".
It warms my heart to see US, UK and EU law enforcement agencies and governments working hand in hand this way. If only they would show that same level of collaboration and efficiency in combating (real) international crimes like human trafficking or corporate tax evasion.
Seriously, an incredible number of computer crime operations (spam, commercial DDoS etc.) go unpunished for years, but these guys are in prison less than 2 months after having DDoS'ed Visa showroom website for a few hours?
Silly me, I thought the judicial branch was supposed to be independent and not bow to government or political pressure.