I think there should just be a chance for encounter while long resting, which is very likely in the full game, so that each rest when at low HP may not be ideal as it can wipe out your whole party.
Problems here are that:
- random encounters are often tedious and players hate them. Many might just reload and hope for no encounter, which will be much quicker than playing through a whole TB combat
- these types of encounters may encourage
more frequent long resting, as players will feel that they need to rest at higher health to ensure they don't get killed.
I think it's better to restrict long rests via limited resources, the area current you're in, or by story/companion consequences, rather than random encounters.
