As someone who has extensively played the BG series, D&D 5e, and both DoS games, this is one of the primary problems I am having when trying to argue that this game isn't just DoS: D&D DLC.
Everyone, everrrryone knows that the massive amount of surfaces is a primary trait of the DoS series. To the point where you're reusing resources from DoS directly in BG 3. Please, either admit you're developing a game that is only loosely based on D&D but more focused on DoS mechanics, or stop trying to incorporate all of those mechanics where they don't belong. Alchemist Fire has very specific rules, so do Cantrips. You're creating more work for yourself, and throwing all sense of the beautiful balance of 5e out the window, in favor of making a third DoS game rather than a D&D 5e successor to the Baldur's Gate series. Solving this problem, by sticking closer to the rules as you can, would help this misconception tremendously.