Fall arresters instead of rope clamps

What are the weak points of using fall arresters (EN 353-2) instead of rope clamps such as in professional applications? We all well know what are the results of rope clamp dynamic loading (sheath tearing results in loads between 5 kN and 6 kN depending on rope type and diameter). Fall arresters on the other hand are made with that purpose in mind and do not damage the rope so easily. It is true most of the falls will not have high fall factors an hence impact loads but what is the point in using devices that are specifically contraindicated for falls? Thanks for your answers.

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