This is pretty close to what I was going to type to the OP. Except that I'm not going to say Anet intends for these to happen, it just seem to be the safest way to go about things. I do imagine there are people who can pull all dps stat 2 melee weapons off and still manage to be as effective...but personally I'd feel crippled without a ranged weapon knowing there is no way I would be fighting most mobs in dungeons in melee full time.
The fights that aren't trivial in this game, in my experience, get really scrappy. And I've come to love all the defensive/support/control skills.