Suzuki of course doing what they always do, ie: come to play and leave with their tail between their legs after a few season. Yamaha - seems like every few years they just lose interest and just stop trying. And Honda, has (as I predicted many times) completely lost the thread as a result of letting their engineers lose themselves in an orgy of flashy, masturbatory whiz-bang engineering feats that apparently offer little or no real advantage to the Honda riders. It's like, whatever cool .... we make, we'll let the crazy talented Spanish kid ride around the idiosyncrasies and design deficiencies……
That’s definitely part of it, but I think the Japanese are struggling with the zeitgeist of the regulations and the depressed state of their economy.
In the old days, if the bike needed improvement, the Japanese manufacturers, particularly Honda would just clean-sheet a component. The engine’s center of mass is too high. Okay, let’s start with a clean sheet. Change the V-angle, bore, stroke, rod design, the engine placement and rotation in the chassis, redesign the clutch, transmission and crankcase, change the firing order, valve train, and the cylinder head design, etc.
The factories can’t do that anymore. Everything is frozen, homologated, cost-capped, restricted or whatever, with an emphasis on reliability. However, the manufacturers can exhaust incredible resources for aero and ride height development because that makes sense to Italians, I guess.
How do the Japanese function in this developmental paradigm? I don’t know if they have the ability to fix the problems with their bike using unrelated components. It’s not in their DNA. However, it is in Ducati’s DNA because they start with concepts and performance objectives that represent their brand, and they develop around the associated deficiencies. Ducati starts with a 90-degree desmo engine, producing more power and revs than anyone else, housed in a trellis frame (previously). Once they establish their DNA concept, they figure out how to get the hot mess around a race track.
The current rulebook sort of mimics the way Ducati do things. It probably doesn’t make any sense to the Japanese. Start with a bad idea and then use more bad ideas to fix it?