Sometimes it would come in handy to have the Wire Shader working in Bump and displacement. Think gaps.
You are right, for some reason it doesn’t work there… We’ll check it out 
(I hope it’s OK to move this into bug reports)
Yes, of course, thanks.
I had considered it to be a limitation so far, that is why I tried it in “Feature Requests” first.
It’s a year and a half and it is still not working. So I thought I’d set a reminder.
Added to wrike for investigating.