Those are 404's :) anyway i think you were referring to this document http://download.microsoft.com/download/3/0/2/3027d574-c433-412a-a8b6-5e0a75d5b237/loading-uasp-driver.docx .
I have found a possible way forward, so attempted to turn on more tracing in the USBHUB3 driver referring to this document https://techcommunity.microsoft.com/t5/microsoft-usb-blog/how-to-include-and-view-wpp-trace-messages-in-a-driver-8217-s/ba-p/270778#Microsoft_Drivers_with_tmf
but alas i cant get symbols for usbhub3.sys using the symchk command for windows 1909 and 20H2 , it always returns no symbols.
I guess the next step is to determine why there are no symbols, especially for windows 1909 i think they should be there its a older build of windows?
Note: searching here, this guy has the identical problem i do regarding symbols https://social.msdn.microsoft.com/Forums/vstudio/en-US/793e7d13-280a-4312-82a6-1be9594c32d3/analyzing-usb-events-in-windows-tracing?forum=windbg and nothing was answered so that was not good :(