What does interoperability from Atom mean though really dude?

When I want to move money from ETH to Atom or vice versa, where is the bridge to do that? Bridging assets is nice and all but it's a far cry from the boastful claims of being "interoperable". There still is gas, still is a chance of liquidity not being there, of the transaction reverting, of being arbbed, etc.

WHen people see interoperable, do they just really mean that a bridge exists (or will exist)?