1. Maybe you will have a chance to create all your things at once. 1 race, 12 buildings, 4 kinds of vehicles, and 1 UFO
It's not impossible.

2. Maybe you can put them down as an enemy race, so you could create the whole ecosystem, even in the creature phase

3. (to Jimmy) It was the SXSW video

4. Probably this is only a sandbox version, not the full game, so it might be still possible to play through without this freedom, like in SimCity 4, where you could always turn on "godmode", and change the terrain, cause disasters, etc., but you could turn it off and play in "Mayor mode".

__________________