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Doesn't that mean ASICs caused decentralization in our case?

(temporarily anyway... I don't think this will last forever. The incentives are prone to cause centralization in the end, we're working on that problem as well)
I am far from convinced that the kind of mining concentration in China that occurred in Bitcoin after the introduction of ASICS will repeat itself in Dash. This is because the latency introduced by the Great Firewall of China around 500 ms has a much greater impact on a coin with a 2.5 min blocktime than on a coin with a 10 min blocktime. Furthermore DASH has an effective blocksize 4x that of Bitcoin and the Chinese Bitcoin miners are fighting any significant increase in the Bitcoin blocksize because of the Great Firewall of China. The impact of ASICS on Dash have implications for many POW coins with block times in the 2 - 2.5 min range