Right now, I believe the level cap on BG3 is 10. But if they plan on releasing a DLC or making a BG4 that continues with your BG3 character, this will only get worse...
At level 11, you'd do 3d6+d4 (4-22) instead of 3d10 (3-30).
Acid splash is fine with the field. I'm totally okay with that one because that's in step with the rules.
Similarly, they added an ice field to Ray of Frost that can knock characters down, but in that case they left the damage at d8 and even added in the slow movement. So that's a small buff. I find that I've been using RoF more than FB because of this.
