Light Level is at this point pretty useless aside from "Number go up make brain happy" especially since we know that levels can be raised and capped as well as encounter levels, just look at Derelict Leviathan. We could still have Artefact power so there's still some "Number go up" to please the masses as well as our Artefact mods to pace out a season's power balance, but overall there's no need anymore. This does a handful of things: Put 100% control of each activity in Bungie's hands to better curate an experience like in Witch Queen's Legendary campaign, release players from power and pinnacle grinds, freeing up time to focus more on ranks, bounties, etc. and remove inventory + shop bloat from Prime Engrams and Upgrade Modules. Artefact power shouldn't affect anything important either, that's either enabled or disabled depending on what Bungie wants as well. Crucible + Gambit it's disabled, GMs it's capped / disabled, everything else free reign.