And that in itself can be a boon. The first set of pics are I believe not zoomed on Yanfeng sets.
If you look at the other headsets the lines running Horizontal (vertical res) is higher.
Og Vive & Rift 1080x1200 per eye
Vive Pro/Odyssy 1440x1600 per eye
I think if the 5k in general had been
2560x1600 that would have been much better. The extra 160 lines would make the grid finer resulting in smoother rounded edges & reduce the grid from being apparent.
Not being able to see a difference makes the 5k+ more economical.
I suspect if it had 1600 vs 1440 @sjefdeklerk would even prefer the 5k+ in titan slayer.