Of course the reverse will be true as Avalon attempts to convert $750000 worth of BTC into USD. If they're smart they'll do it in small increments, but it will still have an effect
Likely they will convert a good chunk of it to CNY not USD. The price arbitrages will go back at USD and other currencies, but the effect is cushioned.
Also, being in China they are likely to keep a good part of the profit in BTC to use in services, since a lot is not allowed over there. This can kickstart a local BTC economy where it's needed the most.
