Is it the same? No.
Is it comparable? Yes.
Is the damage annoying? Yes.
Does it break the game? No.
Does it have problematic interactions with concentration? Yes.
I don't believe it's really comparable. The current BG3 does damage twice, and both deals damage to a direct target (one action available for oil bottle), as well as leaving an environmental hazard. You get a save against the initial throw, but the surface is unavoidable.
Simply making the surface not deal damage until the initial throwers next turn would be a good solution, or making the surface it leaves unlit oil that was not ignited upon impact. It would make the consumable useful, possibly deadly, but not so annoying to face as a concentration caster.
With the current ruleset and available items, I think would be a good idea for Larian to go over the spell list and give a little love. Barkskin, as 1varangian mentioned, is a good example candidate, though druids aren't exactly the most needy caster. I expect sorcerers particularly to be hit hard by the current set up of constant streams of small unavoidable damages.
