I may have talked to you about this, but I feel the same, iOS 7 also absolutely marred the sustained & graphical performance of the OS via the over reliance on increasingly n-dimensional neon or parallax bullshit whereas skeuomorphic design needed a lift but was nominally perfect by way of consistency and hardware demands. I miss Forstall a lot. I even feel their hardware today is designed a bit more sloppily. Idk, people cheered the departure of Ive or Forstall.
Really other than Tim whom I don’t care for — Craig Federighi is cog incarnate. Software has only had one good fucking release on iOS since 7 — that being iOS 12. I can’t even imagine how pernicious the internal influence has been on a normative scale adjusted toward “Apple design and UX of Forstall”