How is this even a question? Of course someone can cry at any age about something if it really touches them. Gtfo with this alpha macho bravado shit. I shed a tear in Mass Effect 3 at the Mordin and Thane parts. It doesnt happen often, but cant deny it does once a few years, sadly the media thats been out lately has been trash so not much effect there.
And the making fun part depends on the context...we talking about that nerdy idiot that was choking crying cause he saw Rey backflip in the sad ? Yes you can mock him cause its retarded to be that attached to a Marry Sue character just cause she in a SW movie.
If we are talking about a character so iconic that touched generations and it suddenly comes back in a decent way, and you cry about it? I think its not mocking material and kinda says more about the person laughing at it.
Oh and no its not ok for someone working at Lucas in any position, let alone leading, to mock a fan of your own franchise, how is this again, even a question? just shows how much that prick doesnt care about what hes working on.