so is this savale scam?

No scam, they tried very hard.
Here is a challenge to DRKcoin. Let the same auditors look at DRKcoin anon system and report on it. Will you accept the challenge?
imho it doesn't matter if they accept or not.
The audit did NOT fail the anon of CLOAK, it is fully functional. It is however not trustless. Their goal is to create a fully trustless anon, that is why they audited, and working on the fix. Simple is that. Nothing changed, from the original goal. And all is in 2 months or so...
Other coins if they claim to be trustless should have it audited and go from there.