Agreed, Solomon Islands citizens like burning Chinese shops and businesses even before this. Wont take much to set them off. If china interferes in their elections next year the US might arm them with molotov cocktails to cause even more damage next time they attack Chinatown in Honiara.
Those riots are the reason for the defence pact in the first place. Solomon Islands government and China are of the opinion that those anti-China riots were sponsored by Australia and the US.
P.S. Apparently there is some ethnic conflict behind those riots and the ethnic tensions were being exploited and promoted by the, uh, liberal democratic free world.