I think the following is more true:
Like fighting eight year olds with pocket knives.
I'm more with Rechan.
Kobolds are no friggin' joke. If they can threaten a 1st level 4e D&D character, they can slaughter a dozen normal humans before being possibly controlled.
They are shifty, tricky, trappy little pikers made all the more frustrating because they should be easy to kill, but aren't.
IMO, it's not heroic to be slaughtered by the scrubs of the monster world... but that's just me.
But they're no longer scrubs, that's the whole point. Now every monster has the possibility of being threatening, even downright lethal.
But they're only like this in 4e. My point was after playing previous editions, in my player's opinion, it in no way felt heroic to struggle in a battle with kobolds or goblins. Now whether you like the new feel of these monsters or not is subjective but it is certainly a difference brought on by hit point escalation of both PC's and monsters.
IMO, it's not heroic to be slaughtered by the scrubs of the monster world... but that's just me.
it's all about FUN in the end!
Simulationism sucks, SUCK big time, because it wastes too much time on mechanics and not on fun. Sure some folk love it, fine by me if they do, but most folk do not liek that at all, they want fun, HEROIC fun. Silly fun. Bloodthristy fun, etc.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.