Here is another article and this one mentions the ride that the company took on a naked Eva from LA to their new store in San Francisco. No mention of why Energica felt the need to "de-tune" the Eva (like all of the IC motorcycle manufactures seem to do with their naked versions of their sportbike models) , when converting the Ego to a "naked" model.
The store at 53 Page Street will open in July and the Eva will sell for $34,000.
http://www.autoblog.com/2016/05/23/energica-debuts-its-naked-eva-in-california/