This is a natural response, but I think it also misses a good opportunity. Philosophy setups like this are always massively unrealistic, but the same is true fo

This is a natural response, but I think it also misses a good opportunity. Philosophy setups like this are always massively unrealistic, but the same is true for almost all physics problems, especially so for first year undergrads. We usually accept the latter as, nonetheless, important pedagogical tools. If you play along with the isolated premise (without adding in "nuance") of these Trolley Problems, I find they can act like little experiments on our moral intuitions that can illuminate one small, isolated facet of the full complex moral machinery. It's likely a bit like Michelson-Morely, though, where it takes work to digest the experimental results into a useful model of the underlying mechanism. In that light, it's also interesting to start adding in the nuance you mention, piece by piece, and see how our moral intuitions change, vacillate, and even give simultaneous conflicting answers.