So all over this forum I see everyone saying your hair properties are more important than curl pattern. I am not trying to bash that statement, but what I am having trouble understanding is: how should my hair routine (methods and products) differ from those with normal porosity and high porosity? I see some things about oils, which I totally get as my hair takes forever/never absorbs oil.

Are there any other things I am missing out on that would make my routine better?

I am not sure if I am making any sense, but I am just having trouble grasping what the big deal is about porosity. Hopefully someone can enlighten me.
3a/3b, Low porosity, Medium Density
Low-poo: Shea Moisture Moisture Retention
RO: Matrix Biolage Conditioning Balm
Leave-in: Kinky-Curly Knot Today
Styler: Aussie Instant Freeze or LALSG