SINGU is a different subject altogether. Three seperate RNAV1 airways coming out of DB would necessitate three RNAV1 airways into Bahrain. No point in having three outbound routes that congregate at one point again. Add the overflyers and Abu Dhabi and the whole thing becomes a mess. Whether the bottleneck is caused by Bahrain or UAE is a moot point. There is a bottleneck, period.
If DB can get three outbound routes then surely AA can get two as well. There simply isn't enough real estate to accomodate all these routes. Activate OMD22 and that's the end of that fairy tale.