Why HP inflation is a valid concern

[YitharV2]

And I really don't understand why we think it would be better to go back and add STR to every last piece of right-side tank gear in the game than to simply change the scaling of a single stat and be done. What is even the point of this? Is STR just a more prettier more favorite-est stat?

Because like it or not, they've specifically stated they're not going to return to VIT scaling. Even assuming you're right about everything else, that's their decision. I will also say it is possible to set AP at a different value to prevent the inflation they're referring to, but I'm assuming that's not something they want to do. Part of it is yeah they're being a bit wishy washy, but regardless of their reasons, I think they don't want to continue to change the AP scaling.