The equivalent hashpower of over 128,000 1080 ti's (700 Sol/s each) were pointed at the SafeCoin network during the attack. The overall network speed was driven from 300 KSol/s to 90 MSol/s.
One notary pubkey CPU mining your unSafe chain was all that happened. Your dev didn't even bother to look at the dPOW code, and obviously doesn't have the first clue about it.
You can try it on the original SafeCoin chain ./safecoind -daemon -gen -pubkey={KMDGENESISNOTARYPUBKEY}