New idea: what if the Darth Plagueis scene takes place before Anakin’s nightmare?
What this would do is show that Anakin has an interest in the power to cheat death before he even has any idea that Padme is going to die. Anakin is immediately intrigued by the prospect of cheating death and asks how to learn it. This would make Palpatine stating in their scene together later that he knows Anakin has always wanted immortality come less out of nowhere, and it also would do more to show that Padme’s death is the final straw rather then the sole reason.