These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternate Character Interpretation: One bible study published online suggests that the book doesn't mention God because Esther and Mordecai are examples of non-religious Jewish People who save the day doing morally questionable acts. (Examples given include the protagonists not relying on God but trickery and the Jewish people using the plot against them as an excuse to murder their enemies and seize their property and then having a really big drunken party to celebrate it)
Woolseyism: The name for the Persian king used in the story is "Ahasuerus", which is a Greek equivalent to the name "Xerxes". Later translation have thus replaced the former name with the latter. Others, however, translate it as "Artaxerxes", who was Xerxes I's son.