I don't get this. Even a high level rogue cannot substitute for a wizard - no AoEs, no disintegrate, no multi-target control (Rock to Mud, Sleep, Stinking Cloud etc). So why should the wizard be able to substitute for the rogue?Spells that can replicate or complement abilities are fine. They have their place when, for some reason, your group doesn't have a particular skill.
If we enter the dungeon without a rogue, I guess we have to find some other way round the door, just like if we enter the dungeon without a wizard, we have to find some other way to defeat the cave full of troglodytes.
I agree with your first sentence, and voted the same way.Generally I think it is a bug; enough that I voted that way
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You want the wizard asking the rogue to do it 100% of the time and only covering the skill through magic if the rogue is down or missing.
But I don't particularly want the wizard covering it at all. Gandalf didn't have a knock spell, after all - he had to do the wizardly thing, or reading the runes and trying to recall/guess the password.