That blog response is completely unconvincing and makes me trust them even less. They have no proof of the extraordinary claim that the flawed hash function was intended (which is bad whether this is true or false) and their network going down for three days is a huge red flag that the protocol cannot be used in a decentralised way. He talks a good game but if you have any technical background you can see he isn't addressing what's being asked and is avoiding valid criticism via hand waving and character attacks.

I disagree with you entirely.

The creator requested an open, live debate to put these claims to rest. They haven't accepted and probably won't.