It was part of the concept right from the start.
Bang on the money.
The
really important bit is not getting into the situation where you need to use LOAL defensively in the first place and that requires an airframe of outstanding kinematic performance that gets you into and out of Dodge, scot free.
Gratuitous asraam/132/9x seeker image...Is it a J??
IRST? Hmm, this is from 1969, methinks things will have moved on a LONG way since...