Watch the conversation for yourself between Andrew Neil, Dianne Abbot and a Syrian girl called ' Muzna ' (if my memory serves me correctly) that took place on the Daily Politics show mentioned in Durhamjens link 8/11/15.
The link provided and anything any poster will say will be subject to being called bias so make the judgement by listening to the horses mouth, if you are remotely interested.
'Muzna' absolutely stood her ground and said the meeting did not want to listen to Syrians/refused to allow them to speak. She said it was about how to defeat ISIS and help Assad win the war. Assad was given legitimacy , she said the meeting "Absolutely shifted discourse to supporting Assad instead of talking about ISIS".
Andrew Neil to some is left of politics to others right of politics , personally I find Neil and Jo Coburn probably fairer than most , they have a go at them all which is the right thing to do.
I also note that this became an issue because of the well known right wing activist (not) Peter Tatchell standing up during the actual meeting to point out to the platform/Abbot that it was noticeable the Syrians attending the meeting were being repeatedly ignored being called to speak, he got very hot under the collar . The Left Foot Forward blog is worth a read too.