Personally i disliked the change because:
Since i was into that digging and getting loot i died many times in the Crypt while digging those entombed past Source Priests.
Each time i was thinking: Damn Larian, you got me again because i'm a greedy bastard =P.
If they decided that it should be an impossible fight until we get to Twins By Fire Joined level, i think it's probably ok as that xp wasn't extremely needed.