From the article: "For the third time in a year, a major Internet security vulnerability has resulted from the way cryptography was weakened by U.S. government policies that restricted exporting strong cryptography until the late 1990s." The bearing of this on the ongoing "backdoor" and "just one device" discussions is critical. This is direct evidence of real harm done by weakening encryption.
The attack is viable without export ciphers. The real issue here is the continued and unabated prevalence of PKCS#1 v1.5 padding (really, of RSA in general).
What I mean is that, today, many many years since the creation of the suite, the single-target cost has dropped to 'only' $440 per target for non-weakened ciphers. I love the money-to-execute-attack metric.
That's still high enough to slow down the viability of broad attacks for most attackers. What about in the past? How much was that back when the suite was created? Much higher. How much sooner did the weakened version make the attack efficient?
I don't mean that the government is the source of all crypto flaws, I mean that we have a specific example of a government mandated crypto 'back door' weakness causing a specific harm, making exploitation of a security flaw substantially easier. This is direct evidence of the harm caused by undermining security, which the government is currently adamant can be done "safely". The security and hacker communities know that this is not true, and this is a timely counter-factual example.
This is direct evidence that weakening cryptography, including back-doors, and special "one time" access fundamentally cause harm by undermining the security of cryptography for everyone.