A little. But AFAIK the GTVA only pays for SSMs that reach stage 5. Oh wait, then there's the fighters that don't make it, the fighters' time, and the AWACS' time. Hrm, maybe.
The rate of fire of the Atreus' launchers might perhaps limit the effectiveness of SSMs, but that still leaves Collateral Damage as an upper bound. Maybe if the Atreus had to provide SSM support to many battles at once, then that would limit it further; although it's never made obvious that SSMs are being used anywhere but the current mission.
It still seemed way out of proportion to all other SSM strikes in the campaign.