Professional sports are entertainment first and foremost. F1 needs to make sure they've got a product that people want to watch. It's a delicate balance, making sure you keep the dedicated fans who got the sport to the point it is, but also bring in new fans who will stick around for more than some curiosity.
I don't know that many race fans are tuning in to see a dominant car win races unopposed. It's something special when it happens once in a while, but it's dull when it happens regularly.
In the past I've suggested changing F1 from being an excercise in driving around in the least amount of time to keeping score of passes. Each car you pass is one point, most passes wins. Then reverse grids give the best cars the advantage of most cars to pass. It also means cars are designed for passing. No blue flags. Each corner is a battle for each and every car.