We have not received permission from Songcaller to share the quoted post.
Unless Intrepid goes the way of the NW or does something directly opposite and designs smth that I don't think I've ever heard of in mmos - mobs won't just change their powerlvl out of the blue. But people will. Back in L2 I'd fight with the same people across the entire character progression from low lvls to the high ones. And when I saw my opponent wearing some new piece of gear I knew the fight would be harder, but I also got the desire to catch up to them faster.
With mobs, you'll just fight a mob once and will know his power (or at least an estimation). And that power won't randomly grow or change throughout your gameplay. Now there's the example of NW where you could see the same mob model but its lvl would be completely different, because Amazon couldn't give their devs enough time to switch to a more pve-oriented game. And there's the opposite example where mobs would in fact "grow" and change in power (outside of the weather effects or stuff like that), but I don't think I've heard an mmo do that, if anyone has pls do give that example.
But what I'm trying to say is that it's the same lvl of difficulty. You'll fight a mob and will know its power for the next fight, which to me sounds easy as hell. But even if you fight a person once, there's no certainty that your next fight wouldn't be differently matched because their power changed, at which point knowing their new power is the same as you knowing the power of the mob after your first encounter.
And if we're talking purely about first encounters, outside of the story-based instanced content, I'm not sure if there's gonna be a single boss/mob that you won't have to fight more than once, so while the wonder of world exploration is a valuable thing for an mmo to have - it's a one-time trick, while pvp is a continuous process throughout your entire character's life.