Secure simple decentralized crypto payments gateway its important because it redefine the online payments instead credit cards it enable merchants to accept crypto payments with only their addresses no wallet generated within the platform or required the Cosmos Hub grants should fund it because it increases the liquidity of ATOM/ecosystem growth in case when adding ATOM as a crypto payment currency
ATOM as a crypto payment currency supported merchants can accept ATOM payments/users can buy using their ATOM balance. WP Plugin add crypto payments to the WooCommerce stores exposed to 4M active merchants.
Depends on the success of the project it encourages the developers to build with cosmos also may affect the liquidity/price of ATOM may encourages people to invest/stack ATOM. Depends on how many people pay using their ATOM balance it increases the number of txs