Because everything aside from combat (and portions of the combat, like the RNG of damage done) was massively shitacular.
If you had watched the video entirely, you would have seen he actually says TERA is a rubbish mmo(very early in the TERA description, at the end of the hammer swinging part) and the only good thing about it is the combat. It's a combat discussion videos, not a which mmo is better. In fact it doesn't even say that TERA combat is better, it just explains what it is in details and compare it to other systems. That video was made as a response for discussions on the Wildstar forums because he was tired having retards come in and comment on his Tera examples on how to make Wildstar less shit without even understanding how Tera combat worked.
Tera has very tight bands of attack for a lot of the abilities, and not everything is mutli-target.
TERA was a really shitty game but the only reason people played it was because the combat was incredibly fun. That system alone carried the game.
End game in TERA was awful. Lockout timers on dungeons, terrible RNG on enchanting, and only like 2 or 3 dungeons. The other end game thing they had was the portal things or whatever, which suffered from terrible netcode and culling, which made it essentially unplayable.
Yeah Tera's combat was fun, but the rest of the game was typical Korean MMO. Tired of all these MMO's that have 1 or 2 parts great and everything else wrong. Somebody someday needs to get all these right parts together. Reminds me of this comic.
I played a Slayer. Most other classes would also agree with me when I say it's that kind of game. The mechanics are all extremely similar, other than the white damage in Wildstar. This isn't ESO with lock on targetting either. There was very little targetting in Tera and you could very well miss attacks or combos.
So technically it may be possible to make it pretty darn close to Tera? That would be awesome.
Not in the slightest. The only thing the Deadlock add-on does it make it so you don't have to hold the right mouse button down all the time. It doesn't change abilities that require a target to function or change the damage is calculated.
The add-on allows you to move the camera and character as if you were constantly holding the right mouse button.
Honestly I wish that was the case - I was hoping this would fit like an old glove because of the similarities to WoW. I had the chance to play for an afternoon on a friend account and found that wasnt the case.
