Point of view. We are talking about Japan, you can't expect much more. It's a special territory. Good or bad is always related to the specific hardware. If there's something bad, is the poor appreciation of great home consoles from Japan, and you cannot do that much about it, it's their taste. Considering the situation, hardware figures are standard, nothing to be surprised.
This is just a theory from me, but I think part of the issue is so many Japanese devs just quit on the idea of pushing home consoles. A lot of them ran away from doing the proper jump to HD development. And it's hard to sell a market on these powerful HD graphics power house machines when a lot of the games that appeal to that demographic don't take advantage of the hardware at all. I mean, think about it. Monster Hunter, a big IP in Japan, made the proper HD jump...just this year. They dodged the 7th gen jump by shifting to handhelds, shifted to the 3DS next, did ports from that with only moderate effort to some HD machines. Only just this year did they make a big, HD game.
And a lot of other franchises that are big in Japan are similar in this regard. I am not suggesting Japan should have gone all big-hit-or-bust like several western publishers have. And I'm not suggesting that massive graphical leaps would make the PS4 sell like the PS2. But I definitely think the PS4 would be an easier sale if more of what was produced in Japan looked to make ambitious use of the larger, more expensive, more power-consuming, non-portable hardware that is the PS4. What is the point of investing in that kind of platform if the devs of your preferred genres and franchises aren't going to take advantage of that hardware?