Does this help?
It appears to me have shallow emarginations to p3 and p4 from this angle - re. the utcs, probably not the best angle to judge them, from the side at eye level or from below is better.
There are emarginations visible, yes. Nothing much on P5 as far as I can see but BRW doesn't always have an emarginated P5 as per Grahame. Is it my imagination, or can we see a tiny P1 sticking out (I think it's missing a primary covert)? Maybe it is a Blyth's Reed after all and its tatty appearance could be due to moult. It definitely has a paler brown iris, which should rule out an Iduna.
I must say the warbler from the 19th also looks good for Blyth's.
I don't know about movements of this species in the western half of the Arabian Peninsula but a few years back my colleagues and I in the UAE discovered that BRW does pass through the UAE in small numbers between mid-August and late September. I think there have been 4-5 sightings this autumn.
Duha, could you send these images to Greg Askew?