"Pro" doesn't always refer to the artistic line of professionals. Many developers see this as a huge problem, and there are a lot of us.
Our options now include the 2005-era looking systems at system76.com, running Linux. I love Linux for servers, but I really don't like the GUIs, or acting as my own systems integrator. I want a true modern "Pro" macOS system, and that doesn't exist right now.