I disagree on special arrows not being used.
The skills are all set with a specific damage type as well as weapon scaling. This means they double scale with skills.
So a Physical damage arrow will gain warfare damage from your weapon and then again for physical damage itself.
A Fire arrow gains warfare damage from your weapon and any points in pyro
Etc
They all also benefit from huntsman and are elemental damage that scales with finesse.
Yeah they are quite useful situationally but the talent is absolutely worthless