Truly, Al Nassr really dominated their opponent in all departments, 17 shots in total for Al Nassr just as you said and 6 on target. Well to have 17 whole shots and 6 were on target showed how wasteful they were in front of goal, but at least they got the win which is the most important thing they needed. At the same time, despite their dominance, they also accumulated lots of yellow cards (6) which is not really a good thing considering the up coming games were a player might be suspended for accumulation of yellow cards and their next opponent might be very strong, in all though, they won that's the most important thing right now.
It was a good game for Al Nassr they dominated the game and won with a narrow score line because they still have problems with their defense, but it was a good victory regardless. 17 goal attempts with six on target means they were still unlucky to have added another goal but all that matters is the 3 points, they were able to go ahead of Al Qadsiyah again with the hopes of seeing Qadisiyah lose so they can sit on the 3rd place permanently.
6 yellows in a match means the game was a pretty intense one and it is not good for the team, some players might get suspended for receiving 5 yellows and might affect the team in upcoming games. The next game is not a tough game but they still have to be at their best.