It's an interesting point people are making. Cars are not allowed to drive faster than a certain speed, but they are able to; car manufacturers do not limit the max speed. It is the decision of the driver how fast he drives. Comparing this to DJI's height limitation, it is a valid argument to ask why couldn't it be like that with drones? Especially considering there are millions of cars and just a handfull of drones, so there is so much more damage that can be done (and is done) with cars than with drones.