sigh
I played quite bit of Oblivion and the claims that Skyrim is "dumbed down" are fairly absurd. I suspect that they didn't make the traps instant-kill because they figured they'd get a metric [censored]-ton of complaints from players about being one-shot-killed by traps when they can take [censored] fireballs in the face and axes to the neck without dying. People have already complained about being hit wth the execution animation when they're around 20%-25% health. You don't think people would complain even harder about being one-shot killed at 100% health?
sigh.
Just because people complain everytime doesn`t mean you should always listen to it. If they listened to every complaint a person made we would have a game that walked for you, fought for you, took you where you wanted to go instantly, then finished the game in 2 hours.
I was going to use such a mod, but as long as my followers blithely walk into traps again and again, all it would do is cause excessive reloading in dungeons.

Followers are strange with traps. Sometimes they blunder right into them and other times I`ve seen them actually go around them. I saw my follower once navigate a 3 pronged trap, no problems.
Anyway, I usually let them wait, go forward and disarm the trap then get them to follow or let them run the trap as they seem unkillable. I`ve not yet seen a trap kill a Follower. They just crawl around.