If you care that much, you can donate money to Arch to buy a commercial license, or inform your sales rep that you find their conduct unprofessional.

Or, yes, you can take the presence of the free version as a sign that the professional service is freeloading, and take your business elsewhere.

I see.

I take this to mean that we have some kind of (perhaps-fundamental) difference in the ways in which we understand how free software works.

(That's OK, comrade. I'm not here to change you.)