It probably risks a lot of repetition to start putting in fuseki and then all the relevant joseki on top of that.
My personal opinion was always that people who want to learn Go and improve will come up against openings and fuseki like the Kobayashi opening where moves like a two space approach to a 3-4 stones will come up often in older resources. Now it’s likely that a two space approach won’t be joseki if the one space approach (high or low) or attachments for example lead to better or equal results
so in theory they have no place in OJE and yet eg https://online-go.com/joseki/45853. I do think non-joseki sequences in the sense of getting an even corner result will still be useful to many people, but of course would need to be marked clearly if entered.
I think that if a sequence such as the one linked is not even, but still plays a role in certain fuseki, I don’t think it should be added in the way that was done in the OP. I think instead it should just use board markings, like letters/numbers x’s etc to indicate the context of the fuseki instead, so that way it doesn’t muddy up the location of the resources in the OJE move trees.
Even better would be the ability to add stones to the board like with the stone editor tool in the analysis/demo board. That is, if one got to the end of a joseki sequence and wanted to mention that it happens in such and such situation you could add a bunch of white and black stones to the end position in the same way one might add X’s and triangles, without it storing these as extra moves.