I would ask them to send you all the duc part no. of the items they are getting approval for to replace. That way you can clearly identify what is 100% brand new. This is a safety thing, and could potentially be fatal. I would be extremely stringent and vigilant just to ensure they are not just bolting on replacement parts and telling you to go ride.
Come on, do not exagerate. On my side, I had some Aprilias and Ducatis before 2012, then 100% Panigales since the first one (2012), and I have a freind buying MV Augustas : I can tell that, then, 100% Italian bikes had this issue of rear break disappearing, whatever you try to fix it. But no safety issue.
But things finally change, and my Panigale V4 '22 is my first Italian bike not having that issue any more (my Panigale V4 '18 still had the issue), and that's just great when I want to remove my rear rim alone !
By the way, having such issue on Panigale V4 '25 is critical : not for safety, but just for all the marketing around this bike. It is supposed to be easier, and among the means to that, the automatic rear break. And I bought it for that. So getting back to initial issues would not be acceptable !
But I am confident :
- I found several historical issues robustly solved on my V4 '18, then others on my V4'22 ;
- ZERO rear break issue on my previous V4 '22 : they found the solution, and for sure they implemented it on our V4 '25 : so, at this point, I think (hope) your issue is an assembly incident.