The lawyer forgot that including those as an excuse would make them look clueless. They didn't understand that people would take it negatively and people would understand that they were trying to get some sympathy.
It's meant to be a free pass out of any sticky situation they find themselves in, buying him more time to keep spewing the crap he does.
It could also be an insurance so should he ever be in the line of getting convicted for his forgeries, he runs back to the fact that he is handicapped and should be giving a lighter punishment.
However, I don't know about the judges, but they should have some technical knowledge as well. Do you guys remember the case between Hodlnut and CSW where the Judge said they do not understand these things well? If the Judge do not understand, how they will make a conclusion?
They could also just get someone to interpret the technical aspects to them and give a clearer understanding on how the network works.