This is about Intel's drivers, which are usually buggy and subpar if you can figure out which ones to use (without contacting your FAE - not all of us have one

This is about Intel's drivers, which are usually buggy and subpar if you can figure out which ones to use (without contacting your FAE - not all of us have one of those), and the fact that they don't expose their hardware to you in a meaningful fashion. You have to access it through the programming models they want you to use, which usually involve a lot of overhead.