Do you think the results of the research above are correct?
That's right, as far as I know Islam, Christianity, Hinduism & Buddhism, including Jews or Christians they have a bible or word from their god about the prohibition of gambling, not only for women, maybe for all adherents there is a prohibition against gambling.
Talking about women involved in gambling, indeed it is something that is bad to look at, many of them are considered negative, but we can't also look at all of them negatively, while they can take care of themselves I think it's not a problem, but still bad views haunt them.
maybe the results of this research can be used by gambling business owners in developing their business.
What does this have to do with the owner of the gambling industry, I don't think the research has anything to do with it.
Casino owners are free to employ women as waitresses in their casinos, it's common for us to see, every online or offline casino must have women in it. Regardless they bet or not there.