Question about I-476 segment

Almost every day when I drive through this segment, I am trying to figure out why is it set as a ramp. The ramp that goes to the right of it really is a ramp that leads to the PA Turnpike, but this segment is really continuation of I-476N.
My level doesn’t allow me to change it and I wouldn’t even if I could. It creates no map problem, I just really wish to understand this better.

http://www.waze.com/wiki/index.php?title=Junction_Style_Guide#Wayfinder_Segments

Thank you.
I suspect that this segment by being a ramp adds routing penalty and Waze occasionally sends me to make a double loop exiting and entering the freeway, just to get me from I-476 to I-276.