..PD are stuck in the stereotypical ignorant east asian video game development self contained bubble .... I really do hope that PD open their eyes, adjust their developmental attitudes and pick up their game...
You see, your coin have two sides actually.
What have you just said about PD, calling them "stereotypical ignorant east asian video game developer" can easily be said for all other Western developer when you put some issues - of which you didn't even think about for a second - in real perspective.
In 1997 first Gran Turismo game introduced one of it's most recognizable features, one that no other developer has even manage to copy and not to even speak about improve
even 13 years later.
That feature has steadily evolve throughout the GT series - it is philosophy of "ownership/maintenance". Paired with great physics-engine, that philosophy creates a unique feel of synergy of driver (player/owner) and the vehicle.
All other Western developers have never even tried to develop such feature, probably aware that more than 95% of users would rather "own" their car without any consequences for actual mechanical-status of the vehicle corresponding with way you actually drive/treat/own it.
One franchise even tried to copy another GT-series unique idea of "AI evolution", but they ditched it after the first game. On the other hand, GT made a self-contained mode out of B-Spec and although many players simply do not know how to use it properly or they simply do not like the idea of developing an AI player, B-Spec mode is another area where GT series has never gotten praise it deserves.
Not to speak about GT series being most important for revolution in steering-devices in the whole genre, where 900-degree rotation and corresponding force-feedback libraries together with development of today industry-standard TouchSense technology (made with Logitech) was bring to mass-market only because of sheer effort of Yamauchi and his seek for crafting an ultimate steering device (which he continued almost a decade later, this time with Thrustmaster and T500RS wheel).
In contrary to stereotypical ignorant Western video game developers who blindly seek to satisfy the players with shiny and glittery details and features that will please the casuals and incompetent press, Gran Turismo series introduced and developed two great and unique features that differentiate it from all other games in the genre and made it an only real "simulation" of actual racing when ownership and maintenance of the vehicle are concerned.
Yet, I bet lots of my money that NOT A SINGLE review of ANY GT game so far haven't put any emphasis on that aspect, focusing instead on how GT game compares to games made in order to satisfy the needs of mass-market.
In light of shortcomings of GT5 I can approve tackling a need to polish/improve
content of some features game already have, but it does not take too much objectivism to understand that depth, richness and overall scope of all features that GT5 delivers beats any other driving game currently on the market.
Improving on content of existing features is something that everybody can be fond of - even Kazunori Yamauchi is very aware of many current shortcoming, thus the all official announcements of the updates, etc. - but calling Polyphony Digital a "stereotypical ignorant east asian video game developer" is fundamentally ignorant and shortminded in any mean imaginable.