Why does not cw20 pass the received native token?

[yun-yeo]

With this line, I guess it does not pass the received native tokens to the next executed contract. Why don't we execute it with received native token balance?

https://github.com/CosmWasm/cosmwasm-plus/blob/28ce20041f2e731bc324adf59accc07a09f7b983/packages/cw20/src/receiver.rs#L23-L31

https://github.com/CosmWasm/cosmwasm-plus/blob/84d9ba6f406ee2c6954afa5fea78ad24865a29e4/contracts/cw20-base/src/contract.rs#L240-L250

[yun-yeo]

It seems out of scope works