Yes they are. But, you can buy housing and cables separately.

You might be able to fix the angle a little bit by tightening down the barrel adjuster on your brake lever and taking the slack out at the brakes.

But, it would be much more effective to get a longer housing (and possibly longer cables, looks like you trimmed your cable off about right).

If you didn't do anything to your housings, I'm guessing dude at the shop cut them too short.