It's just US was wrong in terms of F-16s' weaponry from the start. Upgrade to AIM-7 IIRC was problematic due to the amount of cables needed (compared to the aim-120 upgrade) and, as AIM-120 was not that far away from entering service, in a way irrational.
You do know that that makes your plane way more vulnerable compared to notching? R-27 could be launched in no escape and MiG can crank as well in order to avoid getting into your weapon employment zone as long as possible
Well, okay
Yeah, but MiG wouldn't need to break the lock
Welp, not sure about that, anyway, MiG wouldn't need to accelerate at all as it won't need to bleed the speed as much as F-16 would
Ehm, yes, okay, didn't get how would it help F-16