The POW time isn't a problem, POW distribution is the problem
Either it's 2 weeks or 1 year, the guys with the biggest hashrate will have the more coins. POW distribution can't be good, in any way.
People are always saying IPO are the "evil", but in fact it may be the best way to distribute a coin, it's fair and you can control it more than the other kind of distribution system.
It gives some funds to the devs and distribute the coin equally at the same time.
But the guys with all the hash also have big bills to pay, and they dump the coins to everyone. So it works out the same way, the only difference is with PoW the people who sell the coins aren't the devs.
What I don't get is people screaming about a 2% premine. Big deal. We pay that to a mining pool, no difference.
*edit* ohhh you must be talking about another crypto.