Depends on one's definition of "silly", I suppose. Divinity has a lot of humour and not all of it totally frivolous; though as someone who's eternally a fan of The Young Ones I admit I gravitate somewhat in that direction. But even the seemingly gratuitous silly bits can actually serve as an effective counterpoint that make the serious bits seem all the more poignant. I thought Divinity 2 did accomplished that very effectively, for example (by which I mean Ego Draconis, not DOS2, though the same was true there to a lesser extent).
