I think the problem lies in seeing WK as a kanji learning tool, but not necessarily taking the entire system (including the recommendations) into account, but only the visible and more flashy part of it.
The Guide for using WK
So, yeah, in the beginnig probably reading won’t be much of an option, mainly because of vocab (so work on that alongside WK); then eventually work on grammar too (you can choose level 10 or before to start), as by the time you reach level 20 you can find yourself in an OK possition to start reading native (yet basic) content. But hey, you can start graded readers before, if you want to (the grammar and vocab requirement are MUCH less than native content).
Honestly. SRS apps take a lot of time, if more intervals were added… less time would be available to immerse yourself in the language.
I kind of like the burned concept… so it’s up to me do the rest of the work, as basically it’s weaning you off this tool so you can go chase those kanjis into the wild