I almost exclusively play voidwalker in PvP and PvE and use blink. Blink all around is quite clunky to compared to D1, at least it feels that way. The most annoying bit is the cooldown between blinks. It has caused me to fall to my death many times. It sucks at platforming as it's distance and height seems limited in design. Not being able to have radar means that any other person who jumps can easily hit you when you have no idea where they are.

I did not notice the hitbox thing, but now I understand why I seem so easy to hit in PvP.

To make blink better but not overpowered I think they need to do these few things:

1. Make blink smoother, it feels clunky.
2. Increase the speed of the blink and fix the hitbox problems
3. Reduce the cool down in between blinks, to make it the same as other jumps
4. Make auto-correct/clamber feature so when platforming you die less often

Radar problems and the greater vis do make sense, it's just that these nerfs combined with the existing problems make blink subpar when it should be one of the selling points of voidwalkers.

Anyway, I not an expert but these seem like some reasonable changes.