Sure, every phone has drawbacks, but they're not fundamental like....battery life.
If Google put in a large batter in the device (and let's be honest the phone has more than enough space for one) then that would alleviate a lot of the backlash. Telephoto lens was a choice they made over wide angle, which is lame as the competition are offering three, but whatever, they've always been a lens behind.
It's just the package they're offering, with the significant drawbacks and compared to the competition that is putting people off.
The Pixel isn't a good selling phone. The Pixel 3 didn't sell well at all, and Google aren't going to get people buying their phones when reviewers are saying 'can't recommend', 'bad battery life' etc are the headlines.
There will always be complaints, but the complaints the Pixel 4 is getting are issues that OEM's have resolved for a while now.