A lot of the numbers there are not correct. No idea who made the images, maybe the numbers were correct in some previous beta build, but I have different numbers from our tests the other day…
I don’t know the definitive answer, yes SD said they were working on a wiki, but I think we’ll know when they launch it because it will include all the things you mentioned and they will make a big announcement blog when it goes live.
I don’t recall seeing the link to any wiki’s yet, and these two have both existed for a very very long time, both (as far as I’m aware) created by community members of either wikia or gamepedia and possibly here as well.
The wikia only has very general and very well known information.
The gamepedia stuff is also fairly light and the numbers and text strings can very easily be gleamed from parsing the game files.
I guess it’s possible SD/Nexon reached out the the gamepedia maintainer and asked if they could work together, certainly might explain why their logo has recently (again I think because I don’t check often) been updated to say “official”, in the correct font and shading etc., it certinaly looks professionally done.