Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
IMO, the OptionRom contains the WebBIOS software.
Using it, you can setup RAID configuration outside of the OS.
I use the 9211-8i IT firmware so I don't need the WebBIOS. When I cross-flashed the card from M1015 to 9211 IT, I did not flash the OptionRom (no -b mptsas2.rom).
It's faster to boot since no bios is loaded and there isn't waiting time anymore.