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.
Then these people should not cross-borders. If they think that Fengshui is a sort of sorcery or what then so be it. No need to go against people doing it.
On the other hand, associating luck, even though there's no science behind it, is already a common practice in gambling.
Even for me, I just don't like to throw away my money in random gambling. While putting my best skills to improve my winning results, I also have a sort of luck-related stuff to accompany me on my gambling journey.