@SelfOnlyPath:
Yes we know. However, sometimes it is desirable - for example for PCB layout purposes - to be able to use a user-assigned pin. In some cases that will allow you to use a single-sided board instead of double, or a double-sided board in place of 4 layers. We take a rather holistic approach to such things and this is only one of several libraries - each with a specific purpose. We chose to list this one because it is the most flexible for users not familiar with the timers on these chips.