I’ll be honest, I don’t really like this comic.
So Celestia just decides to take away Twilight’s magic because
“uh, uh magic is bad when you use it too much, m'kay?”
Magic itself is her talent so obviously she’s going to be using it a lot, right?
It’s like gouging out someone’s eyes because they depend on them too much.
Also, Spike is a jackass.

Those faces in the first three panels reminds me of the comic where Twilight tips a glass of chocolate milk over.