It looks like you had 2 mediocre roof crews in a row. Not horrible, just mediocre. Which is about par for the course, I see this kind of crap all the time. But by the way, this isn’t isolated to roofing by any means. If it hasn’t leaked yet, I don’t believe you have much to be concerned about. There is a slight gap between the ridge cap and the roof to allow air to exhaust, otherwise, it wouldn’t work. So seeing some light is common. Not great fit & finish but far from the worst I’ve seen. Kind of the type of work I’d expect to see from many storm chasers and low ball estimators.