Why was Gen 5's Pokemon so horribly designed and rushed?

Pignite
Oshawatt
Watchog
Herdier
The Elemental Monkeys
Roggenrola
Boldore
Woobat
Swoobat
Audino
Gurdurr
Palpitoad
Throh
Sawk
Sewaddle
Swadloon
Cottonee
Basculin
Darmanitan
Scrafty (It's a nigger, seriously)
Sigilyph
Trubbish
Garbodor
Minccino and Cincinno are EXACTLY THE SAME
The Gothitelle line is a Gardevoir ripoff
Ducklett
Fucking Ice-creams
Amoonguss
Alomomola
Those shitty magnemite clones, but much, much worse
Elgyem
Beeheeyem
Beartic (Look at its head to body ratio, it's no ursaring)
Cryogonal
Golurk
Tornadus, Thundurus, and Landorus is just copy and paste
Compare Keldeo to Ponyta, and tell me you don't see anything wrong.

I'm sorry, but whoever they hired to create these fucking abortions hopefully got their cunt booted out of the door.

All in all, the story, and gameplay was great. But you need to understand, these Pokemon are horrible in design compared to every other region and you all know it.
Frankly, a lot of them are rip offs from previous Pokemon as-well. I can understand after 5 gens, your company would begin to lose a lot of creativity and design ideas, but these are just horrible.

The ones that DID come out great were:
Whirlipede
Scolipede
Sandile
Krookodile
Darumaka
Dwebble
Zoroark
Joltik
Chandelure (Very creative)
The entire Haxorus line is God-tier
Cubchoo
Accelgor
Bisharp
Durant
Volcarona
Virizion

Prease Understandu