if the mod used to be important, then explain, why Ostruppen Doctrine is top 4 after three G43 commanders (almost tied with 3rd 'Spearhead' pick), while it is barely making top 10 in 2v2? Perhaps mode they are used in is important?
Osttruppen where moved to T1 on February 26th 2021 and received a buff in weapon slot DPS.
I am not why choose time ranges you choose. In addition if you want to check the impact of moving them T1 you would need to compare the how much it used before and after they are moved with no other changes between the same modes.
The idea that drop in use between 1vs1 and 2vs2 use has to do with osttruppen only is not very sound. The main difference here is user add thing like Lefh and Elephant commanders to their load out.
But I have no idea what the point you trying to make is.
Ostruppen are used as defensive long range infatry both in 1vs1 and 2vs2.