The technician was only here for 8 mins, there is no way he did a good job.
It is not how long a technician is at your home that matters, but the care taken when applying the product that makes the difference. We use powered spreaders/sprayers that cover a larger area than a push spreader allowing for great efficiency. In open areas our sprayers can cover a path over 8’ wide at a time. Because of this we can treat an average-sized yard in less than 10 minutes if there are not too many obstacles to drive around.