Because it just failed thrice (https://github.com/ppy/osu/runs/41775675413#r0) and to me it seems like a profoundly bad idea. I considered having it retry like the framework precedent of this (https://github.com/ppy/osu-framework/blob/dd2b701ed84c687ff71f5c50338d3b325159ee45/osu.Framework.Tests/IO/TestWebRequest.cs#L69) before I noticed that it was also hitting hardcoded production endpoints at which point I decided it was just too weird to live.