Not sure I understand, google maps predates street view by many years and the street view becomes obsolete quite quick.
Doesn't seem that important (for maps).
Doesn't seem that important (for maps).
One-ways streets, road surfaces, sidewalks, lighting, oneways, shops and restaurants, turn restrictions, max heights below bridges, etc, are stuff that to a large extent come from Mapillary.
Driving wasn't available and that is what I would miss the most. But it isn't dependent on street view either.