The Linotype keyboard may not be the best from user's point of view, but the operator would be frustrated waiting for matrices to be returned to the magazine so they could be used again. On the other hand the QWERTY keyboard was designed to overcome the mechanical shortcomings of the original typewriter. The keys had a habit of jamming when operated at any speed. The QWERTY layout stresses the left hand, forces jumps to the top row and has very uneven finger loading. It was a success and became the standard. Studies of the QWERTY layout have shown that it is not tailored to the structure of any major European language, and the left-hand does 57% of the work. But try as they may other layouts have failed to get general acceptance.
In the event of a strike it was very easy to take secretaries, and quickly train them to operate the computer input or perforator QWERTY keyboards. Not that, that is an issue any more.