Without really looking at numbers, I feel that this is really what it's all about. It makes using a 2H as a Crusader viable even without the 30% DR of other melee classes, because a shield provides similar benefits.Quote from Draskus
in reality the passive is more allowing the Crusader to use a SHIELD with a 2her than a 2her with a shield, if that makes sense.
As for the movement speed penalty.. I'm a bit torn about it. At first thought it seems logical that there should be some kind of penalty for being able to use a 2H and a shield at the same time. But when looking at the movement speed... I don't really feel like it's a penalty in terms of game stats - like sheet DPS or toughness - but more a lack of convenience on the player's part. Basically saying "Hey, it's now super annoying to play your class, but you do get to use 2H's" The reason? Movement speed doesn't feel like a competitive stat. What I mean by that is, we tend to measure our toon's progression by the DPS, toughness, height of Difficulty that we can survive in, and so on. But movement speed is not a factor in that. It doesn't make you better or worse than others in a certain department. Of course, you could argue that more movement speed makes you kill things faster as you reach them sooner, but with picking up items in between, maybe standing still for a chat or porting back to town, this seems very nitpicky unless you're focussed on speedruns, which I dare say is a minority anyway. The movement speed penalty doesn't rebalance the class compared to other classes. Instead, it's mostly a huge PITA for the player individually because everything feels very slow.
This became noticable to me today - at first I didn't really mind the 10% cap on Movement speed. It didn't feel that slow to me, to be honest. Until I swapped to another character that did have the MS increase all the way up to 25%. It just felt so much nicer playing that specific character, even if they had way lower stats than my Crusader (currently my 2nd best character in terms of DPS/Toughness).
I guess what I'm trying to say is I understand the urge to want to penalize a toon for being able to use a 2H and a shield. I'm just not sure movement speed is the way to go, because it's not a competitive but a convenience stat.