Yeah, but since this stuff comes in cycles, now we have WebAssembly Component Model, with gRPC predating it.

And I would vouch that REST/GraphQL with SaaS products, finally managed to achieve that vision of software factories, nowadays a big part of my work is connecting SaaS products, e.g. fronted in some place, maybe with a couple of microservices, plugged with CMS, ecommerce, payment, marketing, and notifications based SaaS products.