You can say it would break the pattern of SE's treatment regarding fixed secondary stats in weapons but I would hardly go beyond and call it "unbalanced and stupid" Donjo. We are talking about 10 points of Determination. Also, consider the following example about why you might be wrong here. Take any i70 crafted accessory for instance, and compare it with any DL accessory. Those i70 crafted accessories have CAPS too, but capping one secondary stat never decreased the cap of another secondary stat, in that regard, i70 accessories completely destroyed DL accessories and in some situations they were regarded as good as some i90 accessories, but that was only because you could infuse MAIN stats into them (Vitality for instance).
Maybe SE's doing it with the Novus this time, your secondary stats are a bit higher than the ones of a normal i110 except you can't infuse any main stats this time excluding piety.