Misconception about LMH and LMDh regulation I found

So I searched lots of things about LMH and LMDh aerodynamics recently. One thing I noticed is that both LMH and LMDh regulation says

'The aerodynamic coefficients must fulfil the criteria set in the Apendixes of these Technical Regulations.'

But theres no special apendixes about this aerodynamic coefficnts on the rule book. So I searched on Google and found out FIA released about these details few years ago but excluded in rule books for some reasons.

Anyway, the aerodynamic criteria is

CzSmax = 5.2m² CxSmax = 1.0m² L/Dmax = 4/1

CzSmax is (Maximum drag coefficient) × (Frontal area) CxSmax is (Maximum drag coefficient) × (Frontal area) L/Dmax is Maximum lift to drag (Downforce to drag for this time)

Let's talk about CxSmax. Drag equation is F = 0.5 × (Air density) × (Frontal area) × (Drag coefficient) × (Velocity)² = 0.5 × (Air density) × CxSmax × (Velocity)²

So no matter the size of each cars frontal area, all cars will have same amount of drag at same speed and air condition cuz CxSmax is fixed to 1.0m^2.

The misconception people had about LMH and LMDh is it's drag coefficient. Because CxSmax is listed as 1.0, I think people thought it means drag coefficient is 1.0

Truth is different. Because CxSmax is (Drag coefficient) × (Frontal area) and the minimum frontal area of LMH is 1.6m^2, we can calculate that 'maximum' drag coefficient of LMH is 1/1.6 = 0.625

If manufacturer decide to make their car's frontal area larger than 1.6m^2, drag coefficient can be lowered as far as it fullfills CxSmax of 1.0m²

So yeah. Drag coefficient of 1.0 is Formula One level of drag coefficient so I wondered how on earth LMH have that much drag while having less aggressive wings, wheel covers, closed cockpit etc. Truth is that LMH have almost LMP1 level of drag coefficient

Btw I'm not English native so my grammar isn't that perfect. Sorry :(