Jelsen Darrock is now in Legends, and Callis (or Toll, I always miss which one is) is not a Witch Hunter. I don't think it would be that bad.
Also, seeing how the Grymwatch has been phased out of the FEC battletome, we can see this as a case of Hexbane being removed at some point.
If you check AoS released content only, remove moved to legends minis and sum my point above about WHU minis, we only have 4 named characters right now. That's why I don't think it would be that bad.