I believe the throttling was put in place as a temporary measure to prevent the snap store from going down due to the large amount of firefox snap active installs that were requesting a refresh all at the same time.
I believe that if one runs `snap refresh firefox` enough times, they will eventually get the update downloaded and installed.
Regardless, there is clearly room for improvement of the user experience here.
I believe the throttling was put in place as a temporary measure to prevent the snap store from going down due to the large amount of firefox snap active installs that were requesting a refresh all at the same time.
I believe that if one runs `snap refresh firefox` enough times, they will eventually get the update downloaded and installed.
Regardless, there is clearly room for improvement of the user experience here.