Looking for insight about a non-tech user's experience and whether or not they'll understand that "share page" refers to the page from which the menu was called.
Yes it is very clear. My 66 year old mom, day care center attendant knows what to do - and she's a non-tech user by all means.
I congratulate you for a good design!
You could add the iOS7 share icon to make it even more obvious!
Who cares? Do you actually think that users who are so compelled to share this content are going to pursue any path other than copying the URL and posting it to their distribution platform of choice? Do you think there are 66-year-old women sitting around saying "Gee, I would totally share this link but they don't provide native Facebook integration"? There are not.
And a "non-tech user"? You mean to tell me you're focusing on tech luddites and are concerned about your optimization around their ability to re-distribute content from their mobile device? C'mon now, this is just getting ridiculous.