don't get me wrong, getting a printer this big to run at those speeds must be quite a feat of precise engineering and craftsmanship. but in my opinion this machine is no more than a novelty; a machine no more capable than an off-the-shelf ender 3.
can you imagine producing a prototype from this machine? I have half a notion to build a profile for it in my slicer just to see how long I'd be waiting for a part 1m in any dimension.
is it cool? without a doubt. but FDM at this scale using 0.4mm to 1.0mm nozzles and 1.75mm filament is pointless. I think they missed the beat here by not engineering a hot end with greater extrusion capabilities. if it were fitted with, say, a 2mm nozzle it would be much more capable of producing large parts in a reasonable time frame.