That's GSuite is at the core a product for enterprise/education, and also has much stricter data policies. Unfortunately, a lot of people use it to turn their domain name into a Gmail inbox. Google should really spin that into a separate product.
This is exactly it. It’s a mix of a consumer product with business product.
Here’s the funny thing though. Security isn’t the real reason why the Google Home can’t access the calendar. You’d think Google Home talking to Google servers would be more secure than Alexa being able to read my calendar with no problem.