The general public will notice when there are track events without a single British entrant even the heats and the filed events are a mess. If the team gets the medals it’s expected to those issues won’t matter through but if things do not go quite as well and the medal count is down things could get a lot of notice. A lot of pressure comes on the medal hopefuls.
This also is linked to the wider entire games GB performance. Get above 50 - 55 medals and everything will be seen as reasonably successful but below that and questions will get asked about the funding model and if it’s sustainable.