Agree. Definitely should/could change time automatically, perhaps the T7 then.
Information electronics module (5F) has an adaptation channel IDE00346 - Summertime-automatic, which was from factory at "none". Changed it to "Europe" and it has been now on that setting over two transitions but nothing happened neither in spring nor now. Probably van's time master module is not "date aware" so there is no way to make this change happen even though the radio has the time and date available through RDS data.