With experience, there is nothing hard about changing a cord. Without experience, it is harder. Removing the strain release requires mechanical sympathy; desol

With experience, there is nothing hard about changing a cord. Without experience, it is harder. Removing the strain release requires mechanical sympathy; desoldering/soldering requires soldering skill; etc. If it was your job, you’d pick it up in a day or few. If it is not your job, the learning curve is spread across the time between jobs and there’s relearning if the jobs are infrequent.