All aircraft with podded engines under low-mounted wings have that tendency to pitch up when accelerating. This is nothing new. The 737 MAX additionally has a

All aircraft with podded engines under low-mounted wings have that tendency to pitch up when accelerating. This is nothing new. The 737 MAX additionally has a tendency to pitch up when pitching up. The more you pitch the aircraft up, the more it wants to pitch up. As you pitch up more and more, you'd like the required force on the controls to increase, but in the 737 MAX it would naturally decrease.