Human folly and all that, but I am allowed to want more in an ethereal sense. I am disappointed for I feel this is like the old iphone generation thing whereIt is an improvement over the old iPad Pro, due to more DRAM, more flash, better camera and slightly faster graphics. They're just giving a mid life kicker to this generation iPad Pro to make it a better value - you not liking it compared to the regular iPad is irrelevant to Apple. You obviously aren't their target market for the "Pro" version. For buyers of the Pro these are welcome improvements, or they can wait another 9-12 months for a bigger bang.
Main Number change, you get new features
S Number change, you actually get better specs with cpu, gpu, and ram.
[Note this pattern no longer applies but it was the old pattern for example iPhone 4 vs iPhone 4s, iPhone 5 vs iPhone 5s and so on.]
It was 18 months ago (500 days) when the last iPad Pro upgrade compared to now. I would feel a little better if this was the change 12 months in not 18. It would be great if we get new silicon in 6 months from now. I just wish the iPad Pros were on a more "consistent / quicker cadence" instead of being updated 2015 / 2017 / 2018 / 2020.