"a rescue makes more economic sense"
I should think so. Launching a new satellite means building it, then risking losing it during the launch.
This MEV tech means you can contract someone to repair, and if the MEV is lost its no skin off your back. Or is it that you buy a MEV and risk losing that ?
So the question then is : which is less expensive to lose, a MEV or a new satellite.
Space is a risky business.