@zverik and wrt the argument that you don't get new stuff without spending money.
Literally all editors in that list were initially developed by private initiative, and those private individuals,/organisations/corporations carried the risk that nothing would come of it (and the list of the projects with that outcome is long). Why would the OSMF subsume your risk over that of others?
@simon Why me and not others? Good point — I don't know! In this R&D thread I'd argue that SC and ED are the only two editors actively innovating OSM editing today. We see the outcome: two products that slowly crawl to replace iD and JOSM as primary editors for beginner and dedicated mappers. OSM got those for free. But just as with Merkaartor, OWL, 360°, and - almost - iD, it can lose it for free as well.
Good thing all nine editors in your lists are made by people from first-world countries!