It totally depends on the type of skier and the type of skis you have. I worked in the ski industry and thus lived and worked in ski towns for 15 years. If you are a ski racer, tuning edges matter. If you aggressively ride groomers all day, then they will matter. Riding big fat powder skis everyday, inside and outside of the resort? More or less doesn't matter. Are you a park rat that only ever skis the park? Those folks will actually detune their edges on purpose.
If you are a beginner / intermediate skier (someone who never to rarely carves a ski), edges on the blunter side of things can actually help you out. Sure, it's a bit more sketchy on ice, however just doing a "slide turn" is going to be much easier. It will take less force to make your skis point where you want them too, making you much more confident. It's one of the reasons they put beginners on smaller skis. Less edge = easier turning.
I have skis that were kept dry and haven't been sharpened in years and ski perfectly fine and it's exactly how I want them.
If you are a beginner / intermediate skier (someone who never to rarely carves a ski), edges on the blunter side of things can actually help you out. Sure, it's a bit more sketchy on ice, however just doing a "slide turn" is going to be much easier. It will take less force to make your skis point where you want them too, making you much more confident. It's one of the reasons they put beginners on smaller skis. Less edge = easier turning.
I have skis that were kept dry and haven't been sharpened in years and ski perfectly fine and it's exactly how I want them.