One wants to cut this company a little slack - after all, they have apparently lost half their cast due to 'unforseen circumstances, which required some 'adaptation' of their original material - but in the end there is nothing in the piece that suggests Banshees would be any more compelling (or less confusing) if thecast of three were doubled to its original six.
This production shows youth-theatre level competency, but the actors drown in the space and the direction has left the majority of performances entirely flat. The claim that the piece can be appreciated wholly as a 'piece of visual or physical theatre' is a highly ambitious one, given the lack of material worthy of even mild appreciation.