Lantresor of the Blade

Love how he uses a pick as a weapon, this is a joke where you could assign Lantressor to the mines in your garrison

This is the Lantresor from the Mag'har Orc recruitment scenario.

Strangely enough, he doesn't recognize you even though you saved him in WoD and then he was your follower for the whole of the expansion.
I'm just confused with this whole recruitment scenario and if anyone has the explanation of why he doesn't recognize you plese comment why :)

Edit:
I just talked to a bunch of people from the trade chat as I couldn't find any info about this online.
Most of them say that Blizzard just forgot about him as Grom still recognizes you and even gives out to Geya'rah (daughter of Durotan from this timeline) saying:

Durotan owed a debt to these heroes, Geya'rah, same as I. You dishonor your father's spirit with your outburst.