The answer you only told. Tiger is already already tasted blood of people entering jungle(sleeper) after rake standardization tiger started tasting the blood of humans in villages (AC coaches). Here it is just a comparison to your example my opinion is sufficient sleeper coaches are there, many may have booked sleeper tickets and the unreserved can be accommodated in sleeper only . But now the people who is paying approximately 3 times the sleeper fare also have to experience the unreserved.