This is absolutely spot-on. The concepts that Johnson & co coalesced around, mainly IoC, DI, interfaces, and layers, are bedrock foundations for how most people write any service-oriented system. Say what you want about the things that Boot itself does, like auto configuration, or the Data persistence abstractions, but the foundations of the library are bedrock software engineering, so if you're gonna dump on something that's proven over 20+ years, you better come correct.

This "lingua franca" of Java development also allows you to hire, onboard, and get people productive - rapidly.