While true (and historically a place where people fled the mainland in general, AFAIK), it doesn't change the fact that allowing this settlement in the first place is indicative of a power imbalance at the time. For instance, if the Chinese wanted to set up a colony in the Channel Islands today (Jersey, Guernsey, Isle of Man, Isle of White), I'm pretty sure that wouldn't go over well. Nor would the UK attempting to set up shop today, say, in the South China Sea (in the Spratleys for instance). The balance of power has definitely tipped.