Terrablender is a new mod that was created by the Biomes O' Plenty team, and it's made for mod developers to be able to port and make biome mods for 1.18 in an easier way. I know that for a mod that is supposed to add little things, having a second dependency may seem counterintuitive, but at the same time, from what I hear, making biome mods for 1.18 is a complete pain in the neck. Now I am not a mod developer and I don't code, but I am in no way tech illiterate and do understand some of the logic behind these things. I'm not 100% sure if Terrablender can fix your problem, but it likely can. Also, a lot of mods are planning on using Terrablender, so having a unified approach could be good for the future.

If you checked the contributing guildlines you woulda saw that they don't accept suggestions here thats something you submit to the quark subreddit. Just thought you'd like to know sorry if I'm overstepping any bounds.

Sorry for wasting your time then. I have now posted the suggestion to r/QuarkMod.