I never have this problem when typing with proper posture.
You're typing wrong.
Why Apple continues to do it is a mystery.
... if you type properly, it shouldn't affect you.
...But if they ever change the edge design I will be lining up to buy one!
The speck case fixes this problem.
Like I said in another thread not 3 days ago.
A bit of went and dry sandpaper, should cut those edges down.