I think there is a trick missing here to be able to limit Combat2 to Experiences.
This would take in the form of a region setting, similar to "allow_damage_adjust" and "restrict_combat_log", but instead of allow/deny having a third option of being able to restrict to scripts with an allowed land-scoped experience.
Combat 2.0 is quite exciting but people might be put into a tough place to either restrict scripts or allow them without distinction. Experiences provide an excellent in-between where the trust can be managed by the experience owner or game developers managing damage adjustment themselves for players in their game. Like myself where I am wanting to adjust damage for a dedicated combat game region of my players, compared to the SLMC where you would find two groups pitted against eachother. I might not always be around for moderation of the combat logs or have to be forced to monitor to constantly to prevent other third-party non-game scripts from adjusting damage unfairly.
I think the integer boolean environment variables "allow_damage_adjust" and "restrict_combat_log" can be extended into integer constants so that for example "2" would be meant that for restriction to allowed/key experiences.
Alternatively adding separate variables such as "experience_damage_adjust" and "experience_combat_log" if not extending the current ones.