As a student, it was good for me to have this, or any, basic skill down. I could move past that and keep learning new material. It was something I didn't have to spend time learning. I could spend time learning more "martial arts stuff." You know, punching, kicking, swinging a katana, and throwing people to the ground. The things people join the martial arts for. As a student, it is good to learn basics quickly, just not too quickly.
As a now older instructor, I wish I had to learn rolling. Why? Because it was natural to me, and I have no way to instruct it. I can obviously see this is a skill that many people have problems with. It is my job as instructor to help them acquire this skill. Because I never "learned" it, I can't teach it. I'm having to watch other instructors show people how to teach rolls. In a way, I'm learning to teach by vicariously learning with new students. I watch the instructions, and see what helps and doesn't help.
So I guess what I'm saying, is enjoy the frustration of learning a skill. Especially if it is a difficult one, where you have to practice it a lot before you feel comfortable with it. The learning process is important, and it could end up helping you out a lot more than the "natural" athlete who gets it very quickly. I don't know how many times, the physically ungifted one will be the one who sticks it out to learn the most, and even becomes the best instructors.