Im in the 7th episode of a tutorial on youtube about MonoGame. I still dont understand why hes doing as he is, or what its really doing.

Theres 2 possible reasons.
a. Its because i havent seen proper results and had my hands on it.
b. Im retarded

@AlexDeLarge valid options.
I skipped to the last episode to see what he actually meant by an RPG game.
Turns out it was like 2D minecraft.
Without trees.
View from the sky.
No entities.
Just the fucking tiled ground which you could change by clicking it.

Also you could save and load your precious 2D squares that has no purpose.