The advantage of making a mixed membrane simulation

GROMACS version: 2022.03
GROMACS modification: No
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Dear experts.

I really try hard to simulate phosphatidylglycerol membrane. I spend many times finding sources and reading papers.
But I still cannot understand. Why are many phosphatidylglycerol membrane simulation files constructed as the heterochiral membrane (L-lipid, D-lipid mixed) model?
(SoftSimu - Downloadables: Software, parameters)
(Untitled Document)
(Lipidbook Package: GROMOS-CKP Gromacs 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol by Piggot TJ et al.)

Most natural membranes are L-lipid homochiral membranes.
Are there specific benefits to system stabilization or computational acceleration of the heterochiral membrane simulation?

Thanks for you time and attention!

It’s done to compare to experimental data of PG membranes that are usually a mix.