RWNJs think five terrorists were too high a price? We’ve gone a good bit farther in the past:

Cabanatuan Raid, 1945500 rescued, 1 raider and 3 prisoners killed.
Son Tay raid, 1970, Failed (PoWs not at site), 2 raiders wounded, 1 aircraft lost.
Tehran Embassy raid, 1980. Failed. 8 raiders killed, 7 aircraft lost.