Actually that was my second main argument against modeling the MiG-3 with at AM-38 - the first argument being that it’s pretty much a unicorn (not unlike a Bf 109G6 with long radio mast and a MW-50)
So, what you are saying here is that the development team has already set a precedent - because they have. (and that's fine)
Nobody is complaining about the P-38L being included in Bodenplatte, because the precedent was already set by development team with adding FW190A-3 as collector plane. The precedent being that although the 190 wasn't map/battle specific, it was timeline specific. So, although P-38L had nothing at all to do with Bodenplatte, the (correct) precedent has already been set. Although the P-38L is basically an ETO unicorn - it is there as timeline specific.
So, we have both precedents already set by development team regarding options and timeline.
It is not necessary for development team to spend time or resources adding MW-50 or Erla canopy to be included in BoK, in fact I'm sure they won't include them ( hopefully this will stem the flow of tears from those so opposed to it ).
There is, however plenty of precedent (both in this sim and historically) to add them soon after release if the development team chooses to do so.