As long you dont hurt others or making yourself hurt or something in between two then i dont see anything wrong with it.People are just too judgemental on what others been doing.
I also don't understand why other people are taking things seriously if someone uses the art of Fengshui in gambling.
Because certain religions see Fengshui as paganism or witchcraft. It is a forbidden art for their religion and those who prefer "salvation" over the luck that Feng Shui gives will seriously take action against it. While others are just aggressively imposing their belief that Feng Shui does not make sense because there is no scientific proof about it.
These are much associated with spiritual people, which means they have the better learning about it. The younger generation doesn't believe on acts that doesn't have the proof. These are well connected with cultural and traditional activity. Many follow it for a reason, but when it comes to gambling whatever you follow you're luck decides the outcome.