I was wondering when you'd weigh in & how. But note that I merely told him that there are more views than his. I'd pose the same challenge to you: Construct a logical argument from indisputable premises that there is a single valid view.
There can be more views for it, just like I can use the word "sock" to mean that thing that goes on my feet or I could use the word "sock" to mean a soaking wet rock.
One of those terms is accepted in common parlance, the other is not and would only sow confusion if I wasn't explicitely clear on what I meant by it.
This is entirely an authoritative thing, you're right, but it's not without purpose; it's just for the sake of clear communication based on a common definition.
For instance would you object if someone were to say "Gravity is just a theory" by pointing out that in science, "theory" means something more than just a guess?
If so, then you would have just made the same authoritative semantic argument that these terms have a specific meaning in the scientific community and that the person should be aware of them. Likewise, in the scientific community, theories are distinguished from laws not because of a disparity in evidence or efficacy but because they're fundamentally different things -- i.e., law of gravity and theory of gravity.
Edit: From your edit, you mentioned Popper -- I agree that there are alternative views, as I am a proponent of confirmation in addition to falsification, so I agree.
As for your riddles, they all weigh the same except for the bacon. It wins. Now gimme some!