Pathfinder should NOT be able to grapple while debuffed

Eg, in Caustic gas

or On fire from thermite

And id argue, he needs to go WITHOUT taking any damage for a short time to use his tactical 

What makes pathfinder OP in my eyes, is he has UNMATCHED ability to escape and chase down threats

Even wraith isn't as good, because you can just follow her and drop her once she leaves the void

You CANT catch a good pathfinder

And any trap or set up you get him in, he immediately flings himself to safety

I don't want to reduce how fun he is, BUT, his ability to escape needs to be reduced heavily imo