The main features that were better in Windows NT than in the UNIX-derived operating systems were inherited from the DEC VAX/VMS operating system (1978) (e.g. WaitForMultipleObjects) and a part of them had been inherited from the even earlier operating system DEC RSX-11M (1974-11) (Dave Cutler also had a major role in those operating systems, so there is nothing surprising about this; Microsoft had to pay a big compensation to DEC, on the order of $ 100M, for the features that were obviously taken from the DEC operating systems).
UNIX was very simplified in comparison with the operating systems that were used on bigger computers, and for some things its derivatives never caught up with those older systems, except after 2000. Only "futex" (2002) and "io_uring" (2019) have advanced the state of the art clearly beyond what already existed for AIO on the IBM mainframes around 1964/1966.