are you sure? That looks like a TBH with a TBH super on top to meNo,they are plastic Dartington hives, a TBH does not have supers on top or frames of foundation.
I think thats the major crux jc.I suspect cynical old "know-it-all" beekeepers, and fanatical users of other hive systems, just will not be able to see things beyond their own sphere of experience.
And also the bio-degradable plastic is very close!.
I rather think we are seeing the dawning of 'plastic' beehives, which will see the demise of 'wood' sooner than we envisage at the moment.