DDoS-Guard are in the strange position of being seen as a legitimate service within Russia, used by banks and telecoms and newspapers, but are almost exclusively used for illegal or unsavory purposes outside of Russia. They are well aware of what their global clientele are up to, but I assume they would rather avoid their domestic clients becoming too aware of it.
I don't have a strong opinion about them but i'd be surprised if they were really independent of the Russian state. Too much commercial autonomy can be a liability in some places; it goes to your head and next thing you know you're falling out of a window.