I'm very familiar with this and have read the two original studies. Nothing was done by any legitimate anthropologists, unfortunately.
There really is zero evidence right now for this being an ancient settlement or temple of sorts. If there was a structure there, then charcoal dating would be the best bed.... although since the land was tilled, it would probably be filled with errors. It's a shame all that most of what was there was used in the foundations of nearby farmhouses.