I am confused???
Why would books catering to the US market want to offer cricket??
They would have no expertise in the sport, may need a special linesmaker and would have no current customers who would bet the sport (except when they offered a stale or off line).
If they wanted to recruit bettors from a different market I could see their reasoning. However the offshore books are set-up to cater to the US market and offering cricket can only be a loss maker IMO.