Yes, but is it truly a fatal flaw? Or is it ok, since from block 1 on, all the check are in place. Matt did do a shitty hack to avoid mining genesis blocks with Coingen. He would be best to confirm whether this is a fatal bug or not.
If itʻs a new coin we gotta make, itʻs a new coin we gotta make.
Mind you, I only build coins starting with latest Bitcoin, and no PoS... No gimmicks...