The bad part about UNI is that it's limited, you can't put every single coin there, you do not even put all the ERC20 tokens there, some of them are out, either because they are very low and not have any liquidity provider at all, so they are totally useless, or they are not there for not being listed somehow I suppose (because idea is getting all erc20 tokens in the end). Whereas in places like binance you can list anything you want, it could be erc20 token, it could be bnb chain, it could be tron, it could be its own chain, it could be simply ANY coin you want and it could be listed there.

Plus when it comes to volume, there is absolutely nothing at all that can compare to binance, even with 32+ billion dollars liquidity provided on Uniswap at its peak, it was still lacking volume in some tokens, whereas binance has high volume on everything they have which makes trading better.