If Firoz was so afraid and ashamed of doing all these things and being a Muslim at the same time, why would he even use the name "FIROZ"? on such fake platforms. Reason this first.
Being cut is not always equal to being Muslim.
Nowadays it's not a big deal, Every other person you find is cut.
Do you think Charan Bangaram is necessarily a Muslim? No he is not.
Why do you think firoz is always in a hindu attire?
Perhaps firoz was born a hindu, uncut, wishing to get circumcised, but afraid of the reaction from his community, so he changed his name to Firoz. (Common Sense)