"Much better burst"
It does have better burst but it isnt nearly as good as you make it out to be. Not much difference in the Samarog encounter.
"No reliance on an enemy standing in your AoEs"
Doesn't matter, because for those bosses you wouldn't play power ele. You will still be constraint by the field of Fire Sword 2. Deimos is also a bad example because he will stay longer than 10sec between blacks.
"Decent CC as opposed to Warhorn's pathetic CC"
That's just a lie. It's the exact same cc unless you attune to earth for earthquake which is just 200 breakbar.
"A more fluid and arguably easier rotation"
Ok? You only use 2 skills on warhorn for dps which both have short cast time.
"RoF buff put dagger at 41.5k bench; at ~1.2k below warhorn"
Not sure where you got these number from, but with warhorn im doing 38k, with dagger 35-36k. I very much doubt its just 1,2k.
"You seem to be stuck at SOTO release"
Just read a post saying that you've been playing for only a year and yet you say this? Jesus Christ.