The Planetary Defense System currently provides a +50% Research-bonus and a +2 Adjacency-bonus to Military and Research improvements. However, neither the description of the Militarization tech nor of the improvement itself says anything about improved research.
The Military Academy, from the Malevolent Ideology tree, only provides a +1 Adjacency-bonus to Military. However, Military Studies explicitly states, that it is about researching new ways to wage war.
In my opinion, this sounds like the bonuses for those two improvements have been accidentally swapped.
