I don't understand why you complain when anyone attempts to write an "non compatible AmigaOS4" application without MUI (and therefore tending to exclude the old AmigaOS) while none complains when the MOS developer do the same exact thing.
So maybe in the future, before saying *there is no application for OS4 that justify an AmigaOne*, remember that the only solution to advance the platform is to cut definitely with the past.