Seem to be a good pattern of adding what is needed and otherwise keep things as they are.
Do not have a lot of experience with it but I would gladly ditch our vue.js build process and docker image for the little web we actualy need to do.
One difference for me is that I only pick Vue for projects that are large enough to need fully front-end logic but small enough not to need a build-step (And one could equally well go for React once a project is large enough to need a build step), this is where Vue really shines since you get the auto updating goodess but don't need to burden yourself with any build script complications.