1. It’s DARK. The show does not embrace the principles of Diversity and Enlightenment that many of us expect from Star Trek.
2. 3D Animaton. The outer space scenes are flat, dark, and the animated ships are not as beautiful as constructed-models. It still can be done, see The Orville.
3. Klingon Boobies. Brief, but aggressive sex scenes may just embarrass your kids and your mom too.