(One of the Spin authors here)

In all honesty, I think many of the concepts that we saw in early Java deserve to get another chance in a more language-agnostic ecosystem. I never did a lot of EJB, but CORBA/DCOM are definitely part of the inspiration for what Bytecode Alliance is doing with WebAssembly components.

Java sometimes gets a bad wrap (and so does .NET). Both ecosystems are full of amazing tooling and well-thought-out concepts. I think it's a great idea to look through these landscapes and ask, "Would these features be good additions to the WebAssembly ecosystem?"