Explain.
I'd say most of F1's problems right now come from sporting, not technical rulings.
Secondly, if we're trying to get rid of the ugly noses, the tea-tray section has nothing to do with it.
I'm an a bit surprised you haven't worked this one out for yourself.
Many of the problems with the current cars are related with aero: the massive downforce levels generated by the cars. And the turbulence behind the cars vecause of all that aero what makes following a car close so difficult.
The high noses and undercut in the monocoque contribute a lot to this problem, first of all by generating downforce on their own, secondly by how the airflow is directed to the sidepods which has its effects on how efficiendt these pods become, as well as how they enhance the working of diffusers and rear wings.
Take away that undercut, tea tray etc below the cockpit and you'll massively reduce the manner how the arflow can be optimised for both the sidepods and the rear part of the car.
I know it is a nightmare for the engineers/designers but I really wished they would mandate flat monocoque bottoms so we would see the Pre-1990 kind of noses again.
And also find a manner to destroy the efficiency of the rear wings by intruducing massive side pods again, filled with a lot of equipment for the engine again, like we saw in the turbo years. If the (single) turbo had not been used to generate electric energy then , with a V6 engine, there could have been the option to use twinturbos again. Which have to go into the sidepods, together with radiators etc...
Have a look at the sidepod design of the turbocharged Renault F1 wingcars of 1980-1982 (and the 1983 and 1984 cars)
I don't know how I can ask you this without words that might be misunderstood for intention. But believe me, no offence intended when I ask you, do you understand what I meant with my comment now?
Henri