There are so many disadvantages to trying to make the entire structure of a vehicle into a battery I don't even know where to begin. Apart from the obvious connectivity issue - exactly how do you make a reliable circuit out of all the separate pieces - have they not considered the effects of even minor impacts on the structure? Instant write-off.
The battery pack is best left as a separate, replaceable unit, contained within a load-bearing chassis, like how Tesla (and I think BMW?) are doing it, but unlike Zero/Harley/Energica, who are still putting a heavy battery case inside a frame. Next gen motorcycles should be looking at making the battery case be the actual frame, in the same way that ICE bikes now use the engine as the main structural component of the chassis. The Panigale is almost just an engine with bits bolted to it. By my estimations the current Zero SR/F could incorporate a 21KWh battery pack in the same volume and weight as the current design if the battery casing was fully load bearing with the headstock, subframe, and swingarm mounted directly to it. Not of course especially easy to do - the battery would likely need to be angled - but there might be scope for a BMW-style Telelever front end if not, and Telelever is what makes GSes so amazing to ride.
Cas
