A lot of things about NLS were wrong; this chording keyboard was one of them. Typing speed never went above 40 wpm, because each hand stroke was a byte, a character; QWERTY can hit triple that. Alternative chording keyboard designs like the Stenotype design used by Plover can achieve even higher speeds, but I don't think the Microwriter did.
However, "The emphasis is on usability – without the necessity of training. The exact opposite of Engelbart’s approach," is correct, and it does explain why Engelbart's career went downhill in the 01970s and never really recovered.
However, "The emphasis is on usability – without the necessity of training. The exact opposite of Engelbart’s approach," is correct, and it does explain why Engelbart's career went downhill in the 01970s and never really recovered.