Probably the reason that no one is "pointing that out" is that they would be dead wrong. Singapore is 15% Muslim, 15% Christian, and 42% Buddhist. That being the case, you wouldd be just as right (or wrong) to call Singapore a "Christian city state".
My point is that the Saudi's and China are already owning and running terminals in the US and Singapore was the alternate bidder. No where in sight was an alternate that would be any more secure than UAE.
However, at this point I descend into ignorance.