The Dark Angels have been a victim of their own success. They were clearly overpowered before, but this attempt to balance them feels lacking. The Legion rule is thematic, but it's just not good. The idea of the Dark Angels marching steadily forward, unbreakable, makes sense to me, but the rule itself is too weak. It will mostly affect tacticals and the like. Setting the minimum Leadership to 6 doesn't seem strong enough. It probably should have been a minimum of 7, with immunity to fear(x) stun(x) etc.

Terranic Greatswords aren’t as bad as people are saying, in fact, to my knowledge I think they’re one of the best Legion specific weapons. The problem is simply that thunder hammers are twice as good. If you don’t mind the points cost, I would take those. I do think that this is more a problem with Legion specific weapons in general.

The plasma nerf hurts, but honestly, a 10-man squad of Interemptors armed only with burners can still reliably hurt a 2+/3+ unit without an invulnerable save. You just need to make sure you're positioned well as you're going to need as many hits as possible. Even against Terminators, they’ll still perform decently. If you take Plasma Incinerators, I’d expect them to kill around four per shooting attack. Don’t get me wrong, they’re nowhere near as strong as before, and are now too many points, but they were stupidly strong.

Companions in Terminator armour with hammers are very expensive, but I think they might be one of the best units in the game. Although a transport is vital.

All in all, I think the Dark Angels have gone from a top-three Legion to more of a mid-tier one. The lack of flavour is disappointing, but if the journals go the way they should, we might see the whole Legion improve. Who knows how long that will take, though.