I have some cats and dogs (or my wife has) so i need over pressure in my case because of much dust. But to much over pressure isnt that good for the Airflow. In addition with more intake fans the heat from the radiators warming all components in the case. This is not good for the cooling.
But this is a general Problem not from the view 71. Especially with a RTX3090 its much harder to get a good balance.
I like my View 71. This is my not so actual configuration.(sorry for the bad pictures) with 3 Radiators. 1x 420x30mm Top, 1x 420x40 Front and 1x 360mmx40 side. With this configuration the correct airflow is a massive problem.