We can't rule it out, no. Just comment that it does not seem necessary at this point: Moustache's doxing of scout/Cirrus shows that she could have been easily busted, we know that she was subverted early on (it was rumored at the time, in fact - 'emailgate'), once the account was taken over, then it is perfectly capable of de-anonymizing a server (de-anonymizing is really easy; I've de-anonymized or helped de-anonymize at least 2 blackmarkets myself, and actually, just today someone has found another way SR1 could have been de-anonymized easily, although I can't go into details), and currently the seller/employee busts are consistent with the Freedom Hosting attack, which no one needs to ascribe to parallel construction (since we know it was an obsolete NSA attack which got reused).