The reason I proposed the land portion of meaningful strat play, is because, as you proposed it Karnak, once these strats are destroyed, they stay down for a significant amount of time, as they should. Maybe 3-4 hours. But with this, gameplay will basically degrade to this...
1. Post strat mission
2. Suicide strats and kill as much as you can before you die
3. Off to whatever bases it will affect.
There is no combat added here, unless you can intercept this suicide raid prior to the drop which is usually impossible due to disorganization and the attackers having an altitude head start. It basically just adds another step into the base taking formula, without adding corresponding counter combat to it.