Why are so many Rift titles allowed to violate VRC.PC.Performance1 ?

At least half of the Unity/UE4 based games in my personal library fail to show anything within 4 seconds. Some take 1-2 minutes to even show anything at all and it seems like they only get worse as they evolve with each update and new features are added. Almost seems like the VRC check is really a case-by-case basis and not one-size fits all requirement: giving lenience to whoever - just because.