Like every calendar or task app it is limited to the monthly view. Time horizons helps but it still limited. Having a year view at a glance is very helpful for planning multiple big projects or effort loading as well as year end review.
See what I mean here
https://thebigasscalendar.com/?srsltid=AfmBOopdmYXd2ZniSvXOWBx-SqGyrDGcA9PD5md3qxRXqNzDdqdyE-Uv
Or here
