That confirms my suspicion that Amy Chua's article was a most fine piece of trolling. She wrote outrageous things in the article thereby trolling thousands of parents into buying her book, i.e. the WSJ article was "link-bait" to her book. Even if you're a non-parent you might be drawn by the someone-is-wrong-on-internet effect into criticizing her claims, but she's got a simple answer ready for you: "buy my book".

No, she doesn't. I've read the book and at no point does she ever reject her approach or believe it was less than the absolute perfect approach. Although she eventually allowed one of her daughters to stop practicing the violin with Carnegie Hall intensity, she regrets it and feels she failed.

besides being harsh - why does she reject it?

Her reasons were that she showing that she believed in her children when they did not believe in themselves.

Now I definitely have to read the book. I just read her wsj post.