If i recall, when i installed the latest beta (11.1 it prompted me to download something called .net core) thats fine, i did. I will say though, there was like four different things on the linked page. How many clicked the wrong one?
Anything that is absolutely needed for the app to work, should be included in the download/installer.
I understand that you want to keep the install as small as you can Jason, but maybe either have better instructions, or just include the needed files.