Simply because there is no incentive for some of the main players to make the browser significantly better. Actually the opposite is true - think of what has Mi

Simply because there is no incentive for some of the main players to make the browser significantly better. Actually the opposite is true - think of what has Microsoft and Apple to gain (or lose) if the browser becomes de facto replacement for native OS and their walled gardens? (in case of MS the wall is rather made of consumers inflexibility)