What a customer says they want doesn’t always align with the goals and success of a product. If you ask 20 people what’s most important to them on Fibery you are going to get 15 different answers.
What you’re missing is that Fibery currently focusing on things like custom integrations and API improvements is going to open the door for an App / Integration marketplace where things like your Google Calendar integration can be built by the community and the Fibery devs can focus on platform-wide features, UX/UI and bug fixes.
Source: I run an integration dev agency and we are very eager for an Fibery app marketplace so we can build some of the most wanted service integrations with bi-directional syncing.