That doesn't explain some of the more bizarre oddities of human development and what that reveals about our phylogeny (in other words, our evolutionary relationship to other organisms). For example, as Shubin points out in his book, when we are still in the womb our knees and elbows will be oriented in the exact same direction, just like the limbs of a fish. That only makes sense through common descent.
The book, by the way, is a short but great read; the series is also a good substitute, because it includes many of the same anecdotes and examples which are occasionally taken word for word from the book.