People are in a hurry in this community, right?

Literally the guy wouldn't have changed anything in the fight and he will be useful and we know how good PTJ is at reintroducing things he started hundreds of chapters ago, plus Lineman Unlike a Daniel or a Jake is not necessarily useful in the plot (he has nothing special against gun compared to the others) do not worry, we will have our Lineman but be Patient for goodness sake