Why the 1948 Seagull is the wrong floatplane comparison

Should wartime floatplanes such as the Jake, Kingfisher, and Arado Ar 196 be compared with the 1948 Supermarine Seagull?

No. The Seagull belongs to a later era, while the Walrus is a closer contemporary for the prewar and wartime aircraft.

The Aichi E13A Jake, Vought OS2U Kingfisher, and Arado Ar 196 were prewar or wartime aircraft. Comparing them directly with the 1948 Supermarine Seagull crosses into a later design period. The Supermarine Walrus belongs to the earlier period and is therefore the closer chronological comparison. The objection concerns the aircraft's different eras.