I propose new beta criterion:
"The installer must be able to use updates.img obtained by any supported way"
I think, that this should be at criteria too. There are test cases which uses this feature
- [1], [2]
[1]
https://fedoraproject.org/wiki/QA:Testcase_Anaconda_updates.img_via_insta...
[2]
https://fedoraproject.org/wiki/QA:Testcase_Anaconda_updates.img_via_local...