It's worse, becaues if you won't find and kill every single man woman and child in the grove the game will be stuck and you won't be able to advance the quest. I couldn't continue until I found the tiefling children hideout and slaoughtered them all

Larian's Biggest Oversight, what to do about it, and My personal review of BG3 EA
"74.85% of you stood with the Tieflings, and 25.15% of you sided with Minthara. Good outweighs evil, it seems."