It's still bad and this change won't make it good but it will make it have at least situational use.
Situational is all I'm going for.
I feel that Fearscape is one of those talents which is largely stronger when used by NPCs than when used by the character. I fear making it good would just make it too good when used against you.
As it stands it has some situational use as a very very (very) poor man's panic-button stone wall. I'd rather it had situational use more like a zig-zag tunnel - fight scary dudes 1v1 without having other scary dudes in LoS and without the tedium of digging out the map.
I don't intend for this idea to make it "get this talent asap" good. But it might make it a talent people would actually consider and enjoy using on the occasional randboss.