You're not thinking like a gov't official. I could totally see them doing this if they thought that somehow, they could reverse the process so that travel into the alternative past could be reversible.
Then they would have 2 things:
1) A place they could send people they chose to, and retrieve them. Scientists, colonists, tourists...convicts.
2) A whole Earth's worth of resources to plunder.
Then they would have 2 things:
1) A place they could send people they chose to, and retrieve them. Scientists, colonists, tourists...convicts.
2) A whole Earth's worth of resources to plunder.