Simply put, Cross-chain bridges are a better solution than Atomic Swaps. Atomic Swaps involve a complex 6-8 process of signing cryptographic keys between two parties that require interactivity. You also need a counter-party on all trades. Cross-chain bridges, coupled with continuous liquidity pools means you don’t need a counter-party, and swaps can happen in less than a second. 1-way state pegs are better than 2-way asset pegs because assets don’t need to be wrapped or pegged. Instead of having IOU tokens, real assets can be used instead.