Things like the re-prepping of spells while allowing de-prepared spells to remain active effectively just increases casters' "spells prepared" daily limit, and (if left in the game) should at the very least require player effort. Unless they're intended gameplay, at which point Larian should just make certain spells (e.g., mage armor) not take up a spell preparation slot and save us the hassle entirely.
I agree. I was going over my current "morning routine", but I'd rather the prepared spell exploit was either fixed or fully acknowledged by Larian, as you mention.
Wyll hexing his imp, though, does seem intended. That trick takes nine clicks and it seems to me like that could be streamlined.
