another idea (i may have just watched legally blonde for the first time so this is a little inspired by that) maybe matt and foggy were asked to assist with some big case interstate and they got to tag along to the trial?? it would make sense that they were picked (over the other interns) since it seemed like they were l and z's top interns.

i don't know much about lawyering either so i'm not sure how likely it would be but i guess you could call it creative license??