The danger AFTER an avalanche is near zero. There are very rarely second avalanches in the same place, their whole mechanism for sliding is more or less and all or nothing scenario.
After an avalanche, the snow is extremely dense and compacted this is part of the problem looking for survivors. It’s hard to dig, you aren’t doing it with hands, it’s not fluffy snow, it’s ice the moment it stops moving.
It’s a pain in the ass to look for people in an avi, but it’s not typically some life risking scenario for the people on the correct side of the snow.