The perspective and orthographic camera are not created in the same way. This is just a quick note about the difference at creation since it can be quite disturbing to some users.
Here is a little usecase:
Notice how your orthographic cameras are very very far away while the persp is just always at the same place ?
It is related to the viewSet command. The flags regarding the orthographic views always zoom out a lot to get a hold on all objects and make them visible to the users.
Yes, it is normal and nothing is wrong with your setup.