Homes in Green Valley, Garden Road and Twin Peaks often sit on bigger lots, with a longer run of pipe out to the street. That's a lot of pipe wall for grease, soap and scale to coat. When a line like that gets snaked, the cable breaks up the blockage and leaves the rest of the coating in place, so it tends to come back.
Hydro jetting scrubs the whole inside of the pipe with high pressure water, from the cleanout to the far end. On a line that long, the buildup gets washed out all the way along, not just the spot where the clog was.
It isn't the answer for every drain. If a cable will do the job, the contractor will say so. The contractor examines the line, explains the findings, and the decision is yours.