Ok, I see your issue. You are using the RetroPie "runcommand" in Attract-Mode. You have a miss understanding on how it works.
When you use the "argument" field of the emulator.cfg with the run command it will use the RetroPie settings to show you your options for emulators. In the case of fba, there is only one emulator and that's why you don't see any options.
Here's what I'm looking at, your FBA.cfg:
# Generated by Attract-Mode v2.2.1
#
executable /opt/retropie/supplementary/runcommand/runcommand.sh
args 0 _SYS_ fba "[romfilename]"
rompath /home/pi/RetroPie/roms/arcade
romext .zip;.fba
system Arcade
info_source thegamesdb.net
import_extras /home/pi/.attract/mame-config
artwork flyer /home/pi/RetroPie/roms/arcade/flyer
artwork marquee /home/pi/RetroPie/roms/arcade/marquee
artwork snap /home/pi/RetroPie/roms/arcade/snap
artwork wheel /home/pi/RetroPie/roms/arcade/wheel
When you list "fba" in the "args" field it tells RetroPie to read the corresponding RetroPie emulator.cfg file. This file can be accessed over the network using \\retropie\configs\fba\emulators.cfg or from the command line at /opt/retropie/configs/fba/emulators.cfg.
If you are using the "arcade" rom folder you should only use one emulator file in Attract-Mode for all of your mame, fba, neogeo, etc. emulators. This way it will list all of the possible options for the "arcade" system which is located over the network using \\retropie\configs\arcade\emulators.cfg or from the command line at /opt/retropie/configs/arcade/emulators.cfg. This file will have all your options while the "fba" file will only list fba options, the "mame (libretro)" will only list mame (libretro) options, etc.
Make this arcade.cfg file and it should be all you need for everything and forget about the other files for mame/fba/etc.
# Generated by Attract-Mode v2.2.1
#
executable /opt/retropie/supplementary/runcommand/runcommand.sh
args 0 _SYS_ arcade "[romfilename]"
rompath /home/pi/RetroPie/roms/arcade
romext .zip;.fba
system Arcade
info_source thegamesdb.net
import_extras /home/pi/.attract/mame-config
artwork flyer /home/pi/RetroPie/roms/arcade/flyer
artwork marquee /home/pi/RetroPie/roms/arcade/marquee
artwork snap /home/pi/RetroPie/roms/arcade/snap
artwork wheel /home/pi/RetroPie/roms/arcade/wheel