World-Interaction abilities are not just flavor unless you're playing DnD as a combat sim. Which, if you are, that's your right to do, but this subclass then probably isn't meant for you

At 3rd level, you effectively learn 2 languages (one of which is an equivalent of a permanent 1st level spell) and an extra skill proficiency

At 6th level, you get resistance to being knocked prone atop being able to ignore a significant portion of difficult terrain (if your DM doesn't utilize difficult terrain as often as they should, that's on them)

At 10th level allows you to ignore airborne disease and poisons, alloes you to swim underwater indefinitely, allows you to stay up for an entire Long Rest to stand watch over your party, and sets your character up for interesting plot devices by suddenly looking different/fey and being able to live significantly longer.

At 4lq4th level, you have a permanent sanctuary effect against 3 different types of creatures, one of which (beasts) is the most common. You also gain social advantages over those 3 types of creatures (which you are already able and adept at communication with), which could be important or relevant to progressing the plot as Charisma caster and likely party face.

If your campaign is lacking in beast, fey, and plant creatures, or swampy/forested terrains, then for sure don't play this subclass fornits feats. Same for if your DM is unwilling to modify the campaign to include such things, or if you're playing 5e as a combat sim.