Further there are multiple on device routing and rendering solutions available so you don't really have to use an online service if your don't want to.
The other aspect is that the OSMF itself doesn't really produce any software at all (you could argue that the website software might be different in this respect). What you think of as OSM the OSS project is really lots of companies and individuals providing SW that works with OSM, not the result of a centralized effort a la WMF, Mozilla, or whatever ...
Further there are multiple on device routing and rendering solutions available so you don't really have to use an online service if your don't want to.
The other aspect is that the OSMF itself doesn't really produce any software at all (you could argue that the website software might be different in this respect). What you think of as OSM the OSS project is really lots of companies and individuals providing SW that works with OSM, not the result of a centralized effort a la WMF, Mozilla, or whatever ...