Indeed; we've been laughing about that on the IRC for a few days now. People bitch about GPL's quirks, but it'll be a cold day in hell before a FOSS project pulls something like that.
The funniest part is that the crack, I'm told, does not exhibit that problem. They've succeeded only in hurting their user base. Fortunately for them, lawsuit likelihood is a function of age, income, and IQ—their user base in general tends to minimize one of these.