The traps that Dispel appear to not be effective at stripping spells.
The Gnomish Apprentice, when Stone to Fleshed, gives a line of buggy dialogue _insert message here_ or something odd like that. There is also no option to tell the Questgiver you have saved him.
Finally, though I will hate myself for suggesting this, I think the boss should have Immunity : Knockdown, as it seemed disproportionately easy for the quests level range, using that feat.