Because you can't be respectful or mature about this discussion, neither will I.
First of all, yes, it does look like what you get when you search for "Pharaoh" images, at least in crown. It also looks like what you'd find in an adult store's costume section, or Spirit Halloween. In that sense, it does a believable job at least in the male portion at capturing the standard depiction of a pharaoh. Second of all, Egypt still exists. Only within the past year did they regain the literal remains of their historic leaders from the British. Imperialism has affected them into the modern day. That is a fact.
Lastly, the main issue again as OP stated isn't just the outfit itself, but rather its name, using a term from real world Egyptian rather than simply translating it to something that would fit in universe.
Rather than argue senselessly on something you do not care about enough to even do a moment of research, leave the thread to people who can make meaningful contributions, not simply "Well, I don't see the problem." Thank you.