Ok this "testing" is going nowhere. Clearly.
Good thing is I know what the problem is.
rclone works as expected and fully respects --min-age flag (unless somebody can provide example to the contrary). But rclone does not have magic powers (until ChatGPT will be integrated one day) to know how long time ago file was modified. It uses old fashioned file's date/time attributes - normally they correspond to real file system actions on given file unless 3rd party software modifies them.
And this is exactly the case here. Sonarr (torrent client??) set date/time not to the moment where file is saved but to the original film air date. Such a funky feature of this particular program.
@Jason_Lucas - if you do not like this Sonarr behaviour I suggest you change its settings (if possible) or seek help among Sonarr community.
And here similar issue:
@Jason_Lucas - maybe it will give you some ideas how to fix it. It is not rclone issue but your software trickery/feature:)