To average jury members, who likely wouldn't know what a MAC address was prior to a potential trial, spoofing a MAC address might seem quite sophisticated, actually.
I get your point, and the level of perceived sophistication probably comes down to how well the concept is explained. (At its heart, it's just changing a number. But it could look pretty complex if explained in terms of Python scripts and system services and such.) Of course, there's also still a rather large gap between something seeming sophisticated and that thing seeming to be magic.
