In reply to Jeff Chandler.

Based on research and my own feelings, the fear is that common phrases, words, and calls could become copyrighted thus really hampering open innovation and creativity.

Understandable, but this decision has nothing to do with infringement based on "common phrases, words, and calls. It has to do with wholesale copying and incorporation of implementing code.

What Google did, and what Oracle claims and the appeals court affirms is copyright infringement, is analogous to someone copying the entire /wp-includes/ directory, files and all, into a new CMS.