Priest: Fear not, as my idea also addresses your fears. For one, with my idea, you can't just buy/replace a building instantly. You're basically healing it from NO HEALTH to FULL HEALTH. So depending on how many engineers you have on the job depends on how fast a building gets "reconstructed." Without proper planning, building restoration will be a daunting task, but rewarding in many aspects.
Also remember that it costs credits to reconstruct a building. Teams that lose a building usually don't always have that many credits to spare, so building reconstruction is only an opinion, not a certainty.
Also, don't forget that when reconstructing a building under my proposed plan that the building does not become functional AT ALL until it's health is at 100\%.
I hope that addresses some of your concerns.
- Earls