I agree with your argument and encourage you to make it, I only bring up piracy because right now (in my experience anyway) it exists purely as a hypothetical. This tiny step, the literal least a person could do while still "doing something," is too far for a truly baffling number of people.

The companies literally use piracy rates as part of their metrics to renew

If you pirate the HP show you are helping HBO decide to keep producing it and giving Rowling more money