I thought the devs started staking from day one, and there wasn't any stake pool software available for quite some time, and they were staking the premine, so they basically collected all staking rewards for the first six or twelve months.
Your argument is basically that nobody but the devs could mine Bitcoin until late 2010, because the was no mining pool. But all you needed was an online PC and internet access, just like with Decred.
Anyway, I guess you don't really care about any of this, so I'm out..