If that's internal meetings, absolutely, that's an issue. But I think a company that size that's trying to iterate on their offering should be booking a lot of meetings to talk with customers and potential customers, and that could easily take 15 mins a day in my experience.

Someone said this in a comment above, but in a 3-person SaaS, everyone works sales. It's likely they're scheduling a huge number of meetings with external folks.

The tool in question is (mainly) for scheduling meetings with third parties.