RPC's reputation as broken is outdated: it was earned in an era of synchronous calls, before promises and async/await.

RPC is often accused of committing many of the fallacies of distributed computing. But this reputation is outdated. When RPC was first invented some 40 years ago, async programming barely existed. We did not have Promises, much less async and await. Early RPC was synchronous: calls would block the calling thread waiting for a reply. At best, latency made the program slow. At worst, network failures would hang or crash the program. No wonder it was deemed "broken".