He wanted something to supplament martial arts training, specifically something to build strength. I set him up with how I would go about that. It is a program meant to work the body as a whole not as seperate muscle groups. I would not stay with it indefinitely, no program should be done forever, but it will begin filling in strength deficits and give him a platform to build from. Its meant to be done in a short amount of time and not leaving him unduely sore or tired out for the rest of his martial arts training and I don't care if its fun its training. I don't find curls and rows and endless body part specific programs fun either. I find them bloody tedious and to be a massive time waster that rarely builds useful strength and often leads to over training and muscle pulls.
Now if after a certain amount of time and training he does find specific strength deficits I may suggest some isolation exercises but only until he is capable of performing more complex and useful whole body movements. If he cannot for example perform pull ups than I would think he might mention that at some point in which case I would give him some alternative ideas, none of which involve a lat pull down machine.