Sure, but in that case, we would tend to say something like, "created Mahalo" or "the man behind Mahalo," not "wrote" Mahalo.
Otherwise, yes, your rejoinder is very apt. We say things like, "France rejects US demands for airline passenger information" all the time, knowing full well that France could not collectively do that literally.
http://en.wikipedia.org/wiki/Metaphorical_extension
He may not have written the actual code, but he's definitely the driving force behind the company.