Well we were told that SP first appears on video at about 3:50. How long did it take going west in the North hall before being out of the range of that camera? No more than 10 seconds. By the time we see SP again it is at least 7 minutes later - as we have the time stamped video showing SP in the main hall. What did they do in that time? And they were right next to a kitchen door when the first sequence ended.
Keep in mind also that at the very beginning of the opening sequence what SP sees to their left looks very close to this (the angle would be slightly different and would see the entire door).
That goes to the sanctuary/auditorium. Why even go up the hallway at all when a camera free way awaits just 3 steps away? These are important aspects of the crime.
The reason why the doors are a riddle is that they were smashed in the first place. It is an element of the crime that needs an explanation. Unlike any cameras that should be located at the northwest end of the building we know the cameras in the northeast end were working. Thought there is a way around them - in both directions, i.e. entry and exit via the NE doors.
The pictures show that a person the size of SP would have no problem fitting through any knocked out panes in the glass.
And as I showed, the question remains why wrestle the door hardware off if you could just venture over 8 feet or so and smash the window that would take you into the K1 area of the church. A person the size of SP would have no trouble fitting through those windows because the panes are 30 inches wide - each of them.
So, both the kitchen door and the northeast doors require explanations as they are elements of the same crime. In understanding the elements of the crime perhaps other things about SP's movements can be discerned.
Now, I happen to believe that SP had a tactical breach kit that made removing the door hardware not as difficult as it appeared. I also happen to think that the kitchen door was all part of the staging - in military terms it would be a feint e.g. make your adversary believe your action is your intent when the truth is something else. The key is you have to really make it believable.
You have a different theory. So do others. Fine with me.
Maybe the kitchen is the entry and exit point. But I haven't seen convincing evidence that it is, and it is my belief that neither has MPD.