I haven't tried any of these but some hops have spice-like qualities and I imagine that's what you are tasting (in combination with a stronger malt presence).
I've never picked up any cinnamon flavor in those beers- or at least the first three. I'm a fan of Maharaja and Dale's Pale Ale for sure, and I like the DFH.
Everyones taste buds are different. Thats why some people taste cat piss or onions in some super hopped beers (like gubna and summit hops).
Once you nail down the common flavor amongst those beers, you will know to expect it on future beers.
I would think that is the character of the hops in those beers. Flavor perceptions are very subjective and reflect your personal life experiences. I don't get cinnamon from those beers but I do like their spicy qualities.