They need to make Survival enticing on it's own merits, taking away traps and giving it to only survival just pisses off Hunters even more.
They also needed to make it so old Survivals gameplay style was reproduceable through the marks tree. A lot of people played old Survival because of it's gameplay style, and MM is very different(and crap/unfun).
The core abilities are even in the MM tree, they were just gutted or completely fucked in the case of ES. Now I know Blizzard is completely fucking inept at balancing fucking anything, so making two different playstyles viable in one tree would be take a herculean effort from them, but it's what they needed to do.
As much as I enjoy the new Survival I completely understand why some(most) Hunters are pissed.
Melee Hunter is in a decent place, but it does need buffs and changes.
It needs to have better DPS overall, and significantly better traps then the ones given to the other trees.
It needs to bring it's own unique utility, something that's good enough to warrant bring Melee Hunters, maybe in the form of new traps, or raid buffs or something.
However, you are probably right, Blizzard is so fucking garbage, it's probably better to take things away from MM/BM to make Survival work.