Why bring the whole thing down like that? I always assumed the plan would be to dismantle it and send each piece down to burn up in the atmosphere? Would that not happen?

The idea that everything expanded from a singularity doesn't imply a centre. Everything was smaller previously and now its bigger but it didn't have a centre at either time.

The big bang was the universe starting to expand from a singularity to what we have now. All of what exists now was part of the bang. So you can't see it from any angle because it doesn't have a location, its everywhere.