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.
Based on past sales in I thought 70-80k was a reasonable expectation for a week with two huge games that are practically exclusives. We've seen PS4 go well over 52k before when big games come out. I don't think the software in this case is to blame as its sold very well, PS4 just isn't that healthy in Japan nowadays.