“Average”, as applied to human beings and their abilities, generally means a range. One is average if he/she is not too far from the middle in either direction. Average in this case does not mean EXACTLY in the middle.
And so, I have met many average people in my life. It is not true the statement that “everyone is special in something”. Most people are average. That is a good thing. Some people are above average. That is unusual. Some people are below average. This is also unusual.
Maybe every person has their “hour”, but I oppose the PC adage that everyone has one thing that they are the “best” at.