Just because both tests finished inside 3 days, doesn't mean both pitches were ok. I generally have no real issue with a pitch that turns, but when a surface is cracking and the ball is doing unnatural things on day ONE, like it clearly was in nagpur, then there is an issue. The Adelaide pitch was completely consistent and a "TEST" of the batsmens skills in an environment that offered something also to the bowlers. Nagpur was a lottery, gave the batsmen no hope with zero consistency of bounce and behavior of ball. The test was NEVER going to go for 5 days, but Adelaide might have with more application from Batsmen adept at playing the ball that swings in the air, as opposed to turning at right angles off the pitch.
The WACA was a batsmens paradise, granted, but it could still have produced a result given an earlier declaration and some intent from the Kiwis to chase the runs. It should without question offer more for the bowlers though i future and CA should move to make sure in future it more closely resembles pitches of WACA past.