The way that your console logging is done causes it to not include the mod name in the logs. this is due to how you create your logger on line

To create a forge log that plays nice with others change that line to:

public static Logger log;

And add the following as the first line of your preInit method:

log = event.getModLog();

Closing as this appears to be an issue with MultiMC and not AcademyCraft.