I wish I had the logical clarity and intellectual confidence to feel comfortable in making a response, but nonetheless, I will make an attempt...
There is an appeal to Universalism, in that it appeals to our emotional response to perceived injustices. However, I've learned through y experiences, that there are rational and logical responses to things that are counter to the emotional response that may arise.
I consider that our perspective of what is morally "good" is limited by our inability to fully comprehend what would be ultimately morally just. Without that perspective, I feel that we would default to more of the emotional response.
God the creator actualized a world that operates under His defined set of laws according to His nature. This world follows the established "natural" laws like weather, geology, and other natural processes, and allows for our free agency and the chance that people could freely choose to defy or ignore God altogether. If God were to intervene directly to prevent such a person from coming into existence, then I feel that would violate the order of the world that he established.
I wish I could summarize the point I am trying to make here, but let me just say that I cannot see how we, with any sense of certainty, can say that God does not meet his own moral standard of goodness unless Universalism is true.