I read it, and still a firm no. Batters have gotten stronger and better too. And there's no logical or good answer to the fact that even more pitching injuries would happen if they did this. Which is already a big problem in baseball.
Maybe, but that was addressed:
In the second study, the ASMI team monitored the biomechanics and ball behavior of pitchers as they threw from the standard distance, 2 feet farther back, and close to the geometric center of the diamond (63 feet, 7.5 inches). As expected, the longer distances yielded longer flight times and increased pitch movement. But the pitchers’ kinematics didn’t differ significantly at the longer distances, leading the researchers to conclude, “It is unlikely that moving the mound backwards would significantly affect pitching biomechanics and injury risk.”