Why "docker-container" driver cannot use the --load flag using compose?

Hi,

as stated Here, the docker driver is the only one able to automatically use the --load flag.
Even using the --driver-opt="default-load=true" flag at the builder creation, the images are not visible on the builder host,
meaning using a compose up triggers a pull (which is really annoying as the build was done on the same host).

Do you have an idea of the reason for this behavior?
Is there a “hack” to enable this image loading at build time using compose?