Why do top season crusaders on 4-person team leaderboards have dexterity and intelligence items?

As season 3 is drawing to a close, I am looking forward to season 4 and starting a new character - and was considering crusader. When looking at the 4-person team leaderboards, I noticed that the top crusaders had many Dexterity and Intelligence items.
Since the crusaders seem to be building for all out crowd control and defense stats (cd reduction, resource cost reduction, armor), I can understand maybe some int stacking for the all-resistance, but the dexterity stat is confusing to me - wouldn't it be better to have strength since they will gain some damage from it, even if its just a little?
I would imagine by now they would have found strength items which could be competitive with the dexterity items they have in terms of defensive stats, and I double-checked to make sure dexterity still only gives armor (not dodge, like it used too)
Why do these crusaders have Dexterity on their armor?
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