I know its not a rule, but it is a guideline for how shor rest based classes such as the monk and warlock are designed and it does effect balance.
In actual 5e, if a DM allows groups to take short rests too often (such as after every encounter) then it buffs warlocks since they can basically spam their spell slots in every encounter.
On the other hand if a DM allows a group to take long rests too often, eliminating the need for multiple short rests per day then this nerfs warlocks since they have way fewer spell slots per day compared to other caster classes.
I'm just saying its something that should be considered for when the camp/long rest mechanic inevitably gets updated in the future.
Last edited by gish; 13/10/20 08:57 PM.