With all the time and resources Google has put into their products, you can probably conclude that either a) they want it that way, or b) no one there wants it to be otherwise enough to take resources away from whatever they were doing, and put it into that.
With all the time and resources Google has put into their products, you can probably conclude that either a) they want it that way, or b) no one there wants it to be otherwise enough to take resources away from whatever they were doing, and put it into that.