Divide it by 20 and you'll see how much you will get for all your supply of seeds, then compare to how much a single mine can produce a day when properly buffed.
Then consider the fact that it has almost an hour production cycle, so getting that 2-3k titanium you couldve gotten in a day will probably take you a few weeks if not more.
No need to kid yourself, this is just another case of a building where someone from BB thought you can throw some random numbers around and whatever comes out of it will make everyone extatic. And it ended up like it always does.