I think some people really underestimate how powerful MICA-IR and ASRAAM would be. 10km NEZ, close to unflarable with DL, LOAL and so on.
Especially Mirage 2000D with its flight performance would be terrifying for any fighter that gets into the same airspace. Pushing the idea of “only” 2 advanced IIR missiles instead of 4 possible on F-4F ICE is just disconnected from reality because both would be highly overpowered if added.
You are also forgetting about other missiles such as Python 4 that have to come before we get IIR.
I wouldn’t put it beyond Gaijin to add them nerfed from what you are imagining.
Could be that you’re right and it’ll be a while but personally I think we could see them coming already. Perhaps with a Br increase. Remember Gaijin’s balance is asymmetric so if they think they could see an aircraft with 2 of those getting 1-2 kills per match then they’ll do put it on par with a Su-27SM that has 12 lesser (but still really good) missiles.