Many people don't use RSK Bitcoin so if FISH doesn't list on larger exchanges and has strong promotions, it will be difficult to have a breakthrough in value for this project.
i'm pretty sure listing on new exchanges is already planned. it's still early, the project was launched just a few days ago, so it's not surprising if they focus more on delivering their product instead of exchange. pretty sure the hype will come for rsk project, just like how solana, harmony etc got their own pump too.