Well, to start with, as I already pointed out to you in a previous thread (months ago):

1) The Genos can theoretically only use 12 inserts in style playing. And most factory styles use at most 5 or 6 (sometimes even less). As it was the case in previous Tyroses. I bet most Genos owners do not even know how to set an insert, let alone know how many of them you have available. And anyway it always holds the law of diminishing returns: a few inserts are useful, ten inserts are seldom detectable in practical use, 100 inserts are useless. What would be useful is to stack 2 inserts per channel, a thing the Genos firmware will not let you do.

2) The advertised 256 note polyphony is an half backed feature that is of limited use. All the factory voices can only use 128 notes polyphony (as any humble PSR), the remaining 128 notes can only be used by the expansion pack voices (Yamaha, understandably, does not advertise this!). So, NONE of the factory styles can exploit polyphony in excess of 128 notes. And even if you install expansion packs, the chances to use extended polyphony is pretty slim, and as Gary said nobody will ever notice in practical use.

Once we have cleared these points, I must say than an arranger is primarily bought for its realtime arranging capabilities (features and content). These are the features that put it in another class than many other competing products, which are often more capable and cheaper in the "sound synthesis" capabilities. Nobody would ever buy a Genos if it was not capable of playing styles, although its other general features are substandard in a 2020s product (example: lack of audio over USB, present even in toys, from Yamaha too!).

If I have to judge the Genos for its arranging capabilities (unique selling point), I have to say that they are practically unchanged since 20+ years ago.
This is a fact, you like it or not.

Does the Genos sound good? Yes, absolutely, as it does the previous model(s).

And I still believe that the average player buying a Genos is still the limiting factor. An accomplished player playing any previous model (way back to 20 years ago) will produce a MUCH better result any listener can readily see, despite the lack of the "doubled polyphony" or the "upped 28 insert dsps".

* * *

To answer your last question: we are not hoping anything from Yamaha. It is pretty clear that they are "milking" their arranger platform, and that, as you pointed out, R&D is tiny at best, but probably not existent.

We have developed our own arranging engine that feature wise is vastly superior to Yamaha's. And offers a really enjoyable experience for the player and power user that wants better control and customization, the easy way with a modern touch enabled UI.

I want also to make a spoiler here: this spring we are launching our software also for the Montage/MODX synths. This is a marriage between a state of the art modern realtime arranger engine and the best Yamaha has to offer in sound synthesis. At a fraction of the price of the Genos.

We think that bridging the gap between the arranger and synth worlds we will give an opportunity to many younger musicians that till now may have not considered what a realtime arranger can offer.