Star Wars: Resistance is definitely not on par with Clone Wars. Thus, I shall have to compare it with Star Wars: Rebels.
While Rebels was kid-oriented, it did have its good moments. At least some death was shown (mind you, I'm not some deathmongerer, but casualties in war is realistic. Clone Wars knew this.) ...
Resistance, on the other hand, is even MORE kid-oriented and Kazuda is quite pathetic, unfortunately. Practically no one dies, which is quite unrealistic since they're fighting a war against the First Order.
The best part about Resistance is probably that it's funny AND that it doesn't mess with beloved characters like how Rebels messed with Ahsoka and Rex. I found the animation and graphics to be superior to that of Rebels, too.
All that to say, Resistance is definitely geared toward kids, so I expect they'd rate it well (like 5-9 yr olds). I believe the negative reviews come from older fans.
All in all, I, like other geeks, watch this series only because it's Star Wars and we have an overwhelming urge to watch every single Star Wars film/TV series. For the nongeeks, this is a good show for your kids - it's not too violent, it's fun, and it teaches good values.