I'm pretty sure that they have already completed the necessary cost-accounting and risk assessments before pulling off the trigger for the miners. Also, for bitcoin miners to actually be profitable, more miners are needed for exerting more hashrate and in turn, returning more profits. For a farm that accounts over 1% of the whole network hashrate, I doubt that it wouldn't breakeven fast enough to make profits sooner.

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I don't see this as something of a 'war' but rather redistributing the powers that the Chinese miners have over the hash rate. This is actually good since the scene is developing and that we might see miners being produced that will be more efficient and that could level the playing field pretty hard. While that may not affect us, the bystanders and the users, it helps shape the scene to be more alive and to be more 'secure' from centralization.