You are conflating changes in free floating supply (free steem vs SP) and new steem minting (inflation). The value you report is high because of powerdowns and more steem going out from SP. The actual inflation is as inc described.

It doesn't make a difference from the perspective of decreasing steem price, but actual inflation isn't what you describe it to be.

Ah, you disclaimer that at the end. Just because a bunch of people are talking out their asses, doesn't mean you should propagate bad terminology.