Hello @Zazoe,
You’re right that is a timing issue. I took al look at my implementation and realized that it is really stupid. We want to keep our core logic free from Vue.js dependencies. That means that everything that is related to Vue is set up by initializers rather than importing it statically. As a result, the getComponentHelper() function is only available after the initializers were run.
For our core components, we have solved the problem by delaying their registration into an initializer. see src/app/init/component.init.js