if anything was learned from the bridging wars, is that absolutely nobody cares about passing messages from one chain to another.
not.a.single.person
users want to transfer value. nobody wants to build cross-chain dapps.
thus, there is absolutely no reason to incur systemic risk by creating non-native assets (bridge IOUs) everywhere, needing to perform complicated global accounting, etc.
we should build better cross-chain solvers and make swaps very easy, even for large transfers.
every IOU is systemic risk to the network it lives.