Blue Beetle II was not as rich as Batman, not as smart as The Atom, not as athletic as Booster Gold and less interesting than even G'nort.
That seems awfully disparaging of Ted Kord. Maybe he wasn't your favorite character, but I suspect that a lot of what you say could apply to other characters as well. He also wasn't as invulnerable as Superman, pliable as Plastic Man, beautiful as Wonder Woman, or crazy as the Creeper. If you don't like Ted, that's fine (heck, I'm sure there are people who >gasp< don't like Booster Gold), but I don't agree that the character needs
to be dead to keep him out of the hands of bad writers or make Booster better.
For the record I will admit that I am also not the biggest fan of Blue Beetle II (this site is BOOSTERRIFIC, not BLUE AND GOLD). Even at his KooeyKooeyKooey worst, I never wished him dead. I think bad writers -- or even lazy good ones --will sink anything to their level. That doesn't mean that you have to remove a character from existence to solve the problem.
Beetle and Booster were set up for a career resurrection before Ted was killed. Beetle had been separated from Booster for L.A.W. and then became a supporting character in BIRDS OF PREY. Sure Booster soared to new heights in 52 spinning out of INFINITE CRISIS, but that story in no way required Ted's death.