No. That's not what it teaches. It teaches in the first quest that there is a buff that can be given that means you never die. It teaches you that there are traps in quests. It teaches that there are npc friends in the quest that can disable traps for you. It teaches you that you can not disable a trap. It teaches all sorts of stuff, but not that you (the player) have to bring a rogue you have recruited to come with you into a quest to disable traps.Like most traps, you have to have a rogue (or some toon with disable device) to fix it, and the game teaches that lesson in its very first adventure.
It doesn't teach you that you need to group with other players. It doesn't teach you how to post an lfm. It doesn't teach you how to get a hire from the vendor. The very first hireling vendor in Korthos does NOT even have a rogue hire. There is no tutorial on how to buy a rogue hire in the DDO store.
So when new players (especially if they are in a group with other new players) die to a trap because they are not you who can say "I've done this quest a thousand times so I know the "trick" to bypass." They die. Over and over, they die. And you want a morale killer? Total party kill from a trap. It's one thing for one guy to die, but the whole group? They feel like losers. That is not them being poor players. That is poor quest design. Tell me 6 people dying makes any of them more enthusiastic for this new game they've only invested 2 to 40 hours in?
Screw that, lots more better designed games out there. They will, and they do, go find those games.