Rereading what I wrote previously, what I wrote didn't turn out they way I intended as I had left out some important details and I'm sorry about that.
I'm actually simply and open-mindedly trying to get a view of older sources and how the dance is described in older sources working after the principle of "What do we know and what may we interprete from these facts" while putting aside what I think I know about the history. It is a time consuming exercise and I don't expect to get to a conclusion immediately, but I've used this method successfully in other fields and sometimes I've even had to rethink everything I thought I knew about the subject.
The first task in this exercise is to get an overview of what descriptions there is.
How have any danceforms in the Middle East been described through the centuries?
Then, it is time to ask:
Are there anything in these descriptions that resembles the dance styles we see in this region today?