A company based in a Muslim country and owned and managed by Muslims investing in a secure complex to store alcohol is like a government of a fiat currency-using country investing in a secure complex to store gold bullion, I suppose.
And, depending on who you ask, for Muslims too. The prohibition is against rice wine, which most Muslims generalize to include all alcohol, but some interpret that to mean only rice wine, or only wine.
Yup. By passenger volume, Emirates serves more Indians than any other group.
That's not that surprising when you realize that Dubai, their headquarters, is 90% Asian (which is itself mostly South Asian).