FTA:
"Looks could be good, but they also can be bad, and then you are stuck with platform-consistent, but generally bad UI (Liquid Glass ahem)."
Since the discussion was specifically about platform-consistency, odd that the author would decide that personal taste might take priority over platform-consistency.
"It changes too often, too: the app you made today will look out of place next year, when Apple decides to change look and feel yet again."
Seems to be arguing the exact opposite? If you adopt a native API for controls, windows, etc., your app will change next year to look completely in place (perhaps for better or worse according to the author).
Going DIY on UI and your app might still, in 2026, have brushed aluminum and "lickable" buttons.