A company does not plug a poorly managed leaking hole in the sea, the employees plug the hole. This would not change under receivership.
BP is only a corporate facade, the government used to have the power to remove this facade if it no longer has this power then American has become a Fascist nation where foreign corporations have more power that "we the people".
From what I'm hearing BP has avoided proper safety methods in favor of protecting shareholder value. This has caused the loss of 11 lives, people were killed on that platform! Remember back to the Exxonvaldez, Exxon repeatedly and continuously fought in court to reduce its responsibility and receivership would prevent BP from putting the interest of its management and shareholders ahead of the damage they caused like Exxon did.