I don't know if this is an example of the uncessary complexity, as it seems that this was a major problem for clowns at the time, but in many ways copyright law is not designed to help the artists and instead helps people who profit on artists, like record labels.
Yes, copyright laws have become unnecessarily complex because there is such a fine line between what you can and cannot do based on certain laws. The music industry is the worst violator of this right. If a musician's song sounds slightly too much like another, he or she will be fined and go to court.
No, copyright laws have not become too complex, because we still need copyright laws in order to do business. Without the laws, there is no reason for anyone to invent a new product. There is no financial incentive to developing a new prescription drug, or technology, if people just think that someone else will make the same product the next day.
No, I do not believe that current copyright laws are too complex, because the laws are there to provide protection. There is no way that a simple system like egg painting would ever work in this day and age. The system that we has is not perfect, but it seems to protect inventors pretty well.