The proposition of a Mac Pro in the Apple Silicon world wasn't necessarily about performance, it was about the existence of the PCIe slots. I don't think AI becoming a workload for pro Macs means the Mac Pro doesn't have a place, people who were using Mac Pros for audio or video capture didn't stop doing that media work and switched to AI as a profession. That market just wasn't big enough to sustain the Mac Pro in the first place and Apple has finally acknowledged that fact