Why did they write a comma here?
In your first sentence, the 4th comma is indeed unnecessary. This is what I would write:

在当当网，“创新”是全方位，而俞渝就像心脏一样，源源不断地把创新的血液输送到企业每一个环节。

Your second sentence is grammatically correct, but using the 把 construction is much more natural.