Change the Treasured tag on crafted Apprentice IVs.; It's maddening!; The tag wasn't really a problem, though, until transmuting.
Unfortunately due to the way in which the items are coded, this is not doable, or at least, not without a heck of a lot more work than you'd think.; It's an itty bitty wish kind of like those innocent looking pillars in the Sinking Sands are just an itty bitty little pillar.; ; I'm afraid transmuters are going to have to be more creative with the broker search functions instead.
As for the imbue things, I can confirm that you getting an imbue did NOT take the place of getting a rare item -- if imbues didn't exist at all, you would have just got a common.; However I completely agree the exciting sound and message should be removed from imbued stuff.; This is a coding change and not something I can do, but definitely something I will be following up on.