Erastil Rangers and Snap Shot

[zimmerwald1915]

As of Inner Sea Combat, rangers who follow Erastil and select Erastil's combat style may take Snap Shot at level 6 and Improved Snap Shot at level 10. Snap Shot and Improved Snap Shot both only say they work with weapons with which the character has Weapon Focus. Normally, rangers can use feats without having the prerequisites, but in this case the text of the feats says that they only work on Focused weapons.

How does this work?

[Deadmanwalking]

I'd say you need Weapon Focus to use it, though not to have it. You'd still ignore the other prerequisites, though.