I wouldn't commute by bike over the Filbert Street Steps, that's true. But I don't think the hilly argument against cycle infrastructure is a great one. E-bikes

I wouldn't commute by bike over the Filbert Street Steps, that's true. But I don't think the hilly argument against cycle infrastructure is a great one. E-bikes, in particular, pretty much nullify the issue, and efficient cycle routes probably wouldn't traverse hills in many cities, anyway. SF is an extreme example, but in most places roads tend follow the terrain rather than try to conquer it.