Not really. The NL as I predicted has the halves and the have nots. When you count IL record which I also predicted it seems to fit my narrative pretty well. In fairness I also predicted that the power rankings would be dominated at the top by NL teams which it is.
Not sure that's how I'd phrase it. Think the NL has more teams that effectively realized they were shit and as such made offseason decisions based on that. For example, it's pretty obvious Atlanta was selling everything not bolted down on their team going into 2016. Cincy is another case of this selling Frazier and Chapman. SD was in sell mode in the offseason and then later even more at the deadline. Nobody gets points for winning 80-85 games most seasons since it usually is 88-90 wins to get in the wild card.
Ultimately I don't see the point in citing IL as proof that one league is better than another for several reasons. The worst 4 teams in the NL went 21-46 in IL. The NL vs AL record is 118-143 overall meaning the other 11 NL teams went 97-97. Those 4 teams consist of the aforementioned 3 teams who sold off in the offseason and Arizona who has been comically bad after trying to buy and paying way to much in the offseason.
Additionally, if the argument is the NL has a higher range of teams(ie higher highs and lower lows) I still don't see that as being a negative. You are crowing one team at the end of the year and the top 2 teams in baseball right now are the cubs and Washington. Cleveland, and Texas are just a half game back of Washington but it's really not even close between anyone and the cubs right now. AL probably has a better wild card race but if you're pitting the division winners against each other right now you have a 71-54 tie in the AL east, a 72-52 Cleveland in the Central and a 73-53 West with Texas with the second wild card being the 69-56 O's. In the NL, you have the 73-52 Nats in the East, the cubs dominating in the central at 80-45 and the dodgers at 70-55 with the 2 wild cards being SF at 68-57 and STL at 66-58.
At the end of the day, comparing the two league is fruitless because baseball has an unbalanced schedule. Teams in the NL central are going to look a lot worse record wise because they play the best team in baseball 19 times just like teams in the NL west are probably appear stronger getting 19 games vs the terrible Dbacks and pads.