Terrain was better off gone. Any mapmaker can assure you that it was a huge pain in the ass to work with and would frequently glitch and turn the entire terrain purple. It was painstakingly difficult to make maps perfect and took a lot of time and dedication. The same dedication and time is required with using modter, but it's not painful anymore.
Badspot had a good reason to remove it. Your reasons for wanting it back do not outweigh the reasons why they were removed. It's like begging for the mini-nuke just because 'it was fun to use' when in reality it completely broke the rocket launcher and caused problems.
If you still want to make static maps, go ahead and do it. They do look kinda fun to work with but in reality it's going to be shooting yourself in the foot. I'd only suggest using static maps to make projects that cannot be achieved through modter, such as the planets map