Sorry that happened my friend.
If its scar stretching there will be MINIMAL hairs growing back within the scarline,if any.
I know this from expierence .
Hopefully Konior is wrong and its shockloss or at least a combination. Did he warn you about the potential of this happening ,since he says your a tight guy.
What he did is took a strip a little too wide to get you the grafts you need but due to your lack of laxity you got stretchback In my opinion thats just a bad judgement call,and its not your fault
A revision will help alot if you just take out the scar next time and since it looks like you have alot of hair up there ,you may not need another procedure for quite awhile ,if ever.
Im sure Dr Konior will revise it for free plus anytime theres a revision there will be some grafts ,so he will then be able to use them where needed . Good luck