The online iD editor is powerful enough for even pretty complex/big edits in my experience, with good basemap options and intuitive controls. I don’t see any need to download JOSM.
Exactly my thoughts. Advising to download and use JOSM to a novice OSM mapper to make their first edit there (to add a single tag, of all things) instead of iD is nonsense to me, just totally unnecessary overkill. I don’t even understand how article author decided it’s a good idea, to be honest.
Another option for apple would have been to just wait for a few months. They are downstream of osm but updates are slow. Likely your "propagated within minutes" was misleading. Almost no app, certainly not a mainstream app your customers might use, is reading osm live. They're all days to months behind on periodic batch updates.
Months behind is not fair. Apps like Komoot, OSMAnd or CoMaps have monthly refresh cycles. Others are shorter and yes there are longer (mostly obscure) update cycles such as apple maps, Uber, https://transportnsw.info/
I don't know what the heck map data Uber uses, but it always sends cars to a road behind my house which would require them to drive through a swamp and then up a heavily wooded hill to get here. OSM had the exact same issue, but I fixed it a couple years ago and it propagated just fine to the various OSM nav apps a long time ago. Neither Google nor Apple maps ever had the issue. But now DoorDash, which never before had an issue, last night attempted to send the driver up a gas line easement to get here. No idea what that's about. The entire issue appears to be that I'm on a long shared driveway and the various nav systems are afraid of it.