curl-6 on 02 April 2017
The fact that it's sub-1080p on PS4 suggests to me that the game's resolution is less a matter of hardware and more a matter of the game not being quite as optimized as it could be. I don't know if I'd necessarily call the devs "lazy" though, it could simply be that they didn't have the time or resources to get all 5 SKUs as refined as possible.
That said, I think there's a lot to be said for higher quality pixels rather than simply more pixels. Despite its low resolution, it's still an attractive looking game in my opinion. The first patch has apparently already improved graphics quality on the Switch version, reinstating shadowmaps that were missing at launch:
