The Firebird
Adventurer
No. And this kind of chase mechanic can actually work great in a sandbox.True. But, does that mean that in a sandbox, the DM is constrained from ever introducing encounters that might be too difficult if the party does not play smart? I would have thought that this was pretty much one of the basic tenets of sandbox play. That smart play is rewarded and poor play is penalized. How is the DM introducing a hunting party chasing the PC's not exactly that?
The problem with OotA is that it wants to make the players like the underdark and form relationships there so they want to return to save it in the second half. But optimal play in the first half will have them moving as fast as possible rather than exploring, helping out, and making allies.
On top of that, smart play to evade pursuit is not that rewarded, because they will be caught by fiat in any case.