Actually, the new Gold Wing has the same luggage capacity as my TEX (with the 33 ltr side bags and 55 ltr top box). I rode one for a brief period last Feb. in Arizona.
But it has a suprisingly low weight capacity for a premium tourer. The max load capacity of the new Goldwing is only 192Kg. That is the non DCT, the DCT will be a good few Kg lower than that. That's less than my old 2016 Africa Twin which was 195Kg (no panniers but even they were only 9.5Kg for the pair) Tiger 1200XR is 230Kg, XCa 224Kg and XCx 223Kg. Granted the Goldwing has panniers and top box fitted but allowing 21Kg for those the entry level XR still takes a load of 209Kg Vs 192Kg. It just highlights the underlying robustness of the Tiger.