FrogReaver
The most respectful and polite poster ever
Because clocks in BitD:Why not? I mean, as Reynard notes, it's really granular, such that I don't think it's worthwhile tracking it that way. And I don't know that it'd be interesting. But you could do it.
1. Require DM setup
2. Require DM to decide to tick them as a consequence instead of a different consequence
3. Are rarely in the fiction directly related to the players failed action attempt
HP is generally not any of those things.
*I'm not familiar with other FitD games.
Look, if you want to classify hp as a type of clock go for it, but to me it's at best muddying the waters for no good reason and at worst playing semantic games - because at the end of the day HP is wholly unlike the actual clock implementations in BitD.