This is yet another "We found a community project providing us with billions of dollars in free work but don't find it worth the effort to contribute anything back"
I may get downvoted, but if OSM was not fine with this exact situation happening, then they shouldn't license it the way they do. Nothing seems to indicate so far that they're not fine with the situation so it looks like everyone is happy.
Even if Lyft would not give back in some form (spoiler: they do, see https://wiki.openstreetmap.org/wiki/Lyft), it spreads awareness and drivers will figure out they can fix issues themselves.