Mk3 Eagle Eye - AI intercepts undetected PGMs

After the Mk2 fiasco with the GBUs I tried the Hammer AASM, it has Medium max altitude, so should not be affected by the contrails visual detection, still, the Udaloy and Sovremenny pickets are engaging it with SAM.
(057b.hpm, drop PGMs, bearing only, on both ships)

I switched to red (058red.hpm)
to check how does the detection occur,
only it does not, at least SA does not report any detection,
but the ships are launching SAMs at unseen, incoming missiles.

(I believe the turncoat save file hack does not mess up the SA notifications, but even if it does SAMs are fired without visible targets.)