Because when you think about it, it seems like they pretty much are. I mean, we don't even know most of them do we? They're pretty much just nameless background characters. And characters that seem to be there in place to help Asgard fight. Fight when Odin does stuff like take the battle to Galactus, or when Asgard has to rally together because it's under attack from Surtur or some other big menace or such. For war and combat purposes. How many Asgardians are there anyway? At least a thousnad correct? The only real Asgardians that we know aside from Thor, Odin, Loki, Bor and Sif, are:
#Karnilla- Although she's back isn't she?
#The Warriors Three
#Amora/The Enchantress- Carlos's favorite and the reason that he reads comics in the first place:). Personally I like her as more of a Thor ally.
#Loreli- I think that I'm spelling her name wrong. But she was Amora's sister.
#Tyr- But he's dead.
#The Wrecker and Wrecking Crew- I know that they're not true Asgardians, but they have Asgardian powers.
I know that there are more that I'm overlooking, but for the most part, they seem to be the main ones, and all of the others are pretty much unknowns. I doubt that they're all that good in a fight also. Being as how most of them don't seem to have any real powers.
Their powers are pretty significant in real world terms. Able to lift 25 tons, faster and more agile than a normal human and roughly 3 times as resistant to injury. As immortal warriors, they probably have a higher skill level and experience level in battle than all but the elite on Earth, which means that with enchanted and/or Ã¼ber-durable weapons on hand, they should be able to defeat foes a decent step above their Class 25 status. I'd say Class 50 and below bricks have a pretty fair shot at getting pwned by a run-of-the-mill Asgardian soldier (maybe not an Asgardian farmer or whatever). So, in numbers they should be really intimidating.