Okay. The ones that were decided fast were probably approved by the ML model - Niantic’s machine learning ai. Those emails will say “our team” has decided.
The upgrades and other decisions taking longer than normal has been addressed here:
That said, it will take a while to see what normal for your area is.
You said you understood that it might be in a same cell, but I will include this anyway. A good reference to see why something can be accepted as a Wayspot but not show in Pokemon Go is this article:
We have seen voting times as short as minutes and as long as years. Hopefully the upgrades will start to work like we expect after this issue has been addressed.