The Wiccan ideas on creation could fit evolution after initial creation. Evolution starts with what is there not exactly how everything originated. So, the initial why's of evolution could be considered a moot point since evolution does not deal with an initial creation event. What the why's would deal with would most likely be, in my mind, the purpose of evolution. Since evolution through natural selection and other naturalistic processes is not purposeful in a teleological sense, then why are we discussing why's after all. This 'debate' would involve, as you have said before, a philosophical issue.
After thinking about it, I don't see why evolution would need a why! Does the cell theory need a why? Does gravity need a why? Special relativity? General relativity? As "thinking man", most people need a why for almost everything. Just because our intelligence is a result of naturalistic processes doesn't mean that those processes have to have a reason to operate.
Thank you for thinking so positively about my objectivity. I don't know how objective I am, but I will keep my opinions away from my students. Thanks