Honestly if Pakistan wants to insure no planes will be lost during a strike they should not do an airstrike. First off they should get intel on some strategic target such as airbase, ammo dump, etc; and then launch 10-15 Babur's at the targets. If it escalates more after this the first aggressor would surely be India because of India not being sure of clear evidence that JeM actually did the terrorist attacks and not another group and striking recklessly.
JF-17s, and F-16s should be ready and being taxied when the missiles hit because you can be assured that there will most likely be retaliation from India knowing how Modi wants to win the election and will go ultra try hard mode. If this does happen though I will most likely say that their options are risky but something should be done.