I seriously think that there is a big disparity in outcomes of the both attacks.

The Spy ops should use the same formula's as an AB. Both do the same damage. But now, seems like the spy obs Bomb Structures has a major advantage.

explain...?

Personally, I think Bomb Structure currently destroys a huge amount of buildings compared to ABs, but ABs takes out more CSes compared to Bomb Structures so I think its fair.