What is the point of a dual license if you can't pay for the commercial rights which guarantee that you're not infringing on the copyleft license? Whoever I sp

What is the point of a dual license if you can't pay for the commercial rights which guarantee that you're not infringing on the copyleft license? Whoever I spoke to at Artifex [0] several years ago told me the terms of the commercial license were that if any output of muPDF were visible to the public, my company would owe $10k/mo plus some share of the revenue of the company. Unlimited internal use fell under the AGPL and was therefore free. Btw, the software is incredible, it was a shame I couldn't use it! [0] https://mupdf.com/licensing/index.html#commercial https://mupdf.com/licensing/index.html#commercial